A directional tightening tool for a unified nut

Abstract

The application provides a directional tightening tool for a connected combination nut, which comprises a fixed directional sleeve, a rotating sleeve and a force adding wrench. The fixed directional sleeve serves as a fixed end of the directional tightening tool, the rotating sleeve serves as a nut locking end of the directional tightening tool, and the force adding wrench is used for rotating force adding of the directional tightening tool. The fixed directional sleeve is used for fixing and locking a lower nut, the rotating sleeve is connected with the force adding wrench to drive a rotating upper nut, the rotating sleeve is interlocked with a directional T-shaped clamping groove of the fixed directional sleeve through a rotating T-shaped clamping groove, directional tightening of the upper nut to be locked is realized, the connected combination nut is locked in an angle direction, and the T-shaped clamping grooves arranged on the fixed directional sleeve and the rotating sleeve are integrated and not separated during putting in and taking out, so that the operation is facilitated and the work efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the field of mechanical assembly technology, and specifically relates to a directional tightening tool for integrated nut assembly. Background Technology

[0002] The tracks on a tracked armored vehicle's running gear are formed by connecting track plates, track pins, nuts, and other components of varying sizes, shapes, and quantities using connectors. This creates a ring-shaped track, providing flexible support for the entire vehicle and enabling it to move freely, adapting to different road conditions and improving vehicle mobility. The consistency and reliability of the track pins and nuts connecting the track plates, as well as the tightening torque of the nuts, play a crucial role in the reliability and service life of the entire vehicle's track system. Among these, the consistency and reliability of the tightening torque of the self-locking nuts integrated onto the track pins are key factors affecting performance. Therefore, it is necessary to design a directional tightening tool for these integrated nuts to ensure proper nut tightening when assembling tracks of different types and sizes. Summary of the Invention

[0003] (a) Technical problems to be solved

[0004] This invention proposes a directional tightening tool for integrated nut assembly to solve the technical problem of how to ensure the tightness of integrated nut assembly meets process requirements and guarantees product consistency and reliability.

[0005] (II) Technical Solution

[0006] To address the aforementioned technical problems, this invention proposes a directional tightening tool for integrally assembled nuts, comprising a fixed directional sleeve, a rotating sleeve, and a torque wrench; wherein...

[0007] The fixed directional sleeve serves as the fixed end of the directional tightening tool. It has a hexagonal through hole machined in the center, which is used to randomly mate with the six faces of the lower locking nut to fix the lower nut. The upper end face of the fixed directional sleeve is machined with a directional T-shaped groove for limiting the rotation angle of the rotating sleeve and connecting and locking it with the rotating sleeve.

[0008] The rotary sleeve, serving as the nut locking end of the directional tightening tool, has a hexagonal blind hole machined in the center for mating with the six faces of the nut to be tightened on the upper side. The lower end face of the rotary sleeve has a rotary T-slot that can rotate and lock in the directional T-slot of the fixed directional sleeve. The rotary sleeve achieves interlocking with the fixed directional sleeve through the rotary T-slot. A torque wrench connection structure is provided at the top of the rotary sleeve.

[0009] A torque wrench is used to apply rotational force to a directional tightening tool, and its center is connected to the torque wrench connection structure on the rotating sleeve.

[0010] Furthermore, the fixed directional sleeve is made of high-strength chromium-molybdenum alloy steel.

[0011] Furthermore, the rotating sleeve is made of high-strength chromium-molybdenum alloy steel.

[0012] Furthermore, the top of the sleeve body is provided with an external hexagonal boss structure for connecting with a torque wrench.

[0013] Furthermore, the top of the sleeve body is marked with a rotation direction.

[0014] Furthermore, the top of the sleeve body is marked with a rotation angle.

[0015] Furthermore, the torque wrench is made of high-strength chromium-molybdenum alloy steel.

[0016] Furthermore, the center of the torque wrench is machined with a hexagonal through hole for connection with the external hexagonal boss structure of the rotating sleeve.

[0017] Furthermore, depending on the amount of force applied and the type of nut to be tightened, different lengths of force-applying handles are selected for the side of the torque wrench.

[0018] (III) Beneficial Effects

[0019] This invention proposes a directional tightening tool for integrated nuts, comprising a fixed directional sleeve, a rotating sleeve, and a torque wrench. The fixed directional sleeve serves as the fixed end of the directional tightening tool, the rotating sleeve serves as the nut locking end of the directional tightening tool, and the torque wrench is used to apply rotational force to the directional tightening tool. The lower nut is fixed and locked by the fixed directional sleeve, and the rotating sleeve, connected to the torque wrench, drives the rotation of the upper nut. The rotating sleeve interlocks with the directional T-slot of the fixed directional sleeve through a rotating T-slot, achieving directional tightening of the upper nut to be locked, thereby locking the integrated nut at an angle. The T-slots respectively located on the fixed directional sleeve and the rotating sleeve ensure that the fixed directional sleeve and the rotating sleeve remain integrated during insertion and removal, facilitating operation and improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a perspective view of the integrated nut directional tightening tool structure of the present invention;

[0021] Figure 2 This is a front view of the integrated nut directional tightening tool structure of the present invention;

[0022] Figure 3 This is a top view of the integrated nut directional tightening tool structure of the present invention;

[0023] Figure 4 This is a cross-sectional view AA of the integrated nut directional tightening tool of the present invention. Detailed Implementation

[0024] To make the objectives, contents, and advantages of the present invention clearer, the specific embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples.

[0025] This embodiment proposes a directional tightening tool for integrally assembled nuts, the structure of which is as follows: Figures 1 to 3 As shown, it mainly includes a fixed directional sleeve 1, a rotating sleeve 2, and a torque wrench 3.

[0026] The fixed directional sleeve 1, as the fixed end of the directional tightening tool, is made of high-strength chromium-molybdenum alloy steel. It has a hexagonal through hole machined in the center, which is used to randomly mate with the six sides of the lower locking nut to fix the lower nut. The upper end face of the fixed directional sleeve 1 is machined with a directional T-shaped groove for limiting the rotation angle of the rotating sleeve 2 and connecting and locking the rotating sleeve 2.

[0027] The rotating sleeve 2, serving as the nut locking end of the directional tightening tool, is also made of high-strength chromium-molybdenum alloy steel. It has a hexagonal blind hole machined in the center for mating with the six faces of the nut to be tightened on the upper side. The lower end face of the rotating sleeve 2 has a rotating T-slot that allows it to rotate and lock within the directional T-slot of the fixed directional sleeve 1. The rotating sleeve 2 achieves interlocking with the fixed directional sleeve 1 through the rotating T-slot. The top of the rotating sleeve 2 has an external hexagonal boss structure for connecting to the torque wrench 3. The top of the sleeve also has rotation direction and angle markings for easy identification of the rotation angle and torque during operation.

[0028] The torque wrench 3 is used to apply rotational force to the directional tightening tool. It is made of high-strength chromium-molybdenum alloy steel and has a hexagonal through hole machined in the center for connection with the external hexagonal boss structure on the rotating sleeve 2. Depending on the amount of force applied and the type of nut to be tightened, different lengths of torque wrench handles can be selected on the side of the torque wrench 3.

[0029] like Figure 4 As shown, when using the directional tightening tool of the present invention, first insert the fixed directional sleeve 1 and the rotating sleeve 2 of the directional tightening tool together and rotate them in opposite directions so that their two T-shaped slots are engaged. Then, put them on the pre-tightened upper nut 4 and lower nut 5. The fastening end faces of the fixed sleeve 1 and the lower nut 5 are tightly fitted. Then, put the torque wrench 3 on the hexagonal boss structure at the top of the rotating sleeve 2. After rotating the torque wrench 3, stop rotating when the rotating sleeve 2 and the fixed directional sleeve 1 reach a predetermined angle, thus realizing the fixed-angle locking action of the integrated combination nuts 4 and 5. Depending on the different locking angles of the nuts to be locked, the rotating sleeve 2 can be processed with rotating T-shaped slots of different angle specifications, and can be used in various combinations with the directional T-shaped slots of the fixed directional sleeve 1 to meet the locking requirements of different angles, thereby improving the versatility and utilization of the tool.

[0030] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A directional tightening tool for integrally assembled nuts, characterized in that, The directional tightening tool includes a fixed directional sleeve, a rotating sleeve, and a torque wrench; wherein... The fixed directional sleeve serves as the fixed end of the directional tightening tool. It has a hexagonal through hole machined in the center, which is used to randomly cooperate with the six sides of the lower locking nut to fix the lower nut. The upper end face of the fixed directional sleeve is machined with a directional T-shaped groove for limiting the rotation angle of the rotating sleeve and connecting and locking it with the rotating sleeve. The rotating sleeve serves as the locking end of the nut in the directional tightening tool. It has a hexagonal blind hole machined in the center for engaging with the six faces of the nut to be tightened on the upper side. The lower end face of the rotating sleeve has a rotating T-shaped groove that can rotate and lock in the directional T-shaped groove of the fixed directional sleeve. The rotating sleeve achieves interlocking with the fixed directional sleeve through the rotating T-shaped groove. A torque wrench connection structure is provided at the top of the rotating sleeve. The torque wrench is used to apply rotational force to the directional tightening tool, and its center is connected to the torque wrench connection structure on the rotating sleeve.

2. The directional tightening tool as described in claim 1, characterized in that, The fixed directional sleeve is made of high-strength chromium-molybdenum alloy steel.

3. The directional tightening tool as described in claim 1, characterized in that, The rotating sleeve is made of high-strength chromium-molybdenum alloy steel.

4. The directional tightening tool as described in claim 1, characterized in that, The top of the rotating sleeve is provided with an external hexagonal boss structure for connecting to a torque wrench.

5. The directional tightening tool as described in claim 1, characterized in that, The top of the rotating sleeve is marked with a rotation direction.

6. The directional tightening tool as described in claim 1, characterized in that, The top of the rotating sleeve is marked with a rotation angle.

7. The directional tightening tool as described in claim 1, characterized in that, The torque wrench is made of high-strength chromium-molybdenum alloy steel.

8. The directional tightening tool as described in claim 4, characterized in that, The center of the torque wrench is machined with a hexagonal through hole for connection with the external hexagonal boss structure of the rotating sleeve.

9. The directional tightening tool as described in claim 1, characterized in that, Depending on the amount of force applied and the type of nut to be tightened, different lengths of force-applying handles are selected on the side of the force-applying wrench.

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