TWM522809U - Locking nut assembling and disassembling tool - Google Patents

Description

Lock nut disassembly tool

The present invention relates to a machine tool bearing locking element, and more particularly to a tool for disassembling a locking nut.

The lock nut is a commonly used fastening component for machinery and is widely used for the connection and positioning of parts in various machines. As shown in FIG. 1 , the circumferential side of the locking nut 10 has equally spaced grooves 11 for engaging and disassembling the C-wrench 20 as shown in FIG. 2 , and the operation mode is to use the C-wrench 20 . The two claws 21 receive the hooks in the corresponding recesses 11 of the C-wrench 20, thereby rotating the C-wrench 20 to drive the lock nut 10 to rotate.

It is worth noting that when the circumferential side space of the assembly of the lock nut 10 is limited, the operation of the C-wrench 20 will appear rather unsmooth and difficult; in addition, a C-wrench 20 can only be used for a single-size lock. Tightening the nut 10, therefore having to be equipped with a variety of C-wrench 20 will increase assembly costs. In addition, when the lock nut is used for preload assembly of a bearing such as a screw, the lock nut 10 is directly locked to the tightest or the lock distance is measured by using a gauge, and the actual operation cannot accurately grasp the preload bearing. The force applied is therefore likely to cause the locking nut to be too strong to increase the bearing friction and the life is lowered, or the locking force is too small, resulting in insufficient rigidity of the feed shaft and easy loosening.

The present invention provides a lock nut disassembly tool which is mainly formed into a cylindrical structure and has a working end and a driving end. The working end is formed into a cylindrical shape and the circumferential side of the barrel is equally spaced in the axial direction. Four or six clamping pins for matching the grooves on the circumference of the locking nut, and forming the driving end of the disassembly tool into a metric-sized sleeve structure for movably connecting the adjustable Torque value function torque wrench, using the torque wrench to provide pre-quantized locking force of the locking nut, to ensure the accuracy and uniformity of the locking nut installation, to achieve the best effect of the locking nut installation, and through the existing The torque wrench can be operated with the new disassembly tool, which has the technical effect of saving production cost and increasing convenience of use.

Therefore, in order to achieve the above object, the present invention provides a lock nut dismounting tool which is formed into a cylindrical shape and has a working end and a driving end. The working end is provided with an inner hole, and the driving end is provided with an inner hole. A plurality of connecting holes are defined in the end, and the direction connecting the working end and the driving end is defined as an axial direction, and the working end is provided with four or six clamping pins at equal intervals along the axial direction of the inner hole peripheral edge.

Preferably, the card pin has a circular cylindrical structure in cross section.

Preferably, the working end is provided with four or six mounting holes on the periphery of the inner hole, so that a corresponding number of the forming pins are tightly mated with the mounting holes.

Preferably, the inner hole is formed into a round hole.

Preferably, the set of holes are formed as square holes.

Preferably, the outer peripheral surface of the driving end is provided with a ring groove.

With regard to the techniques, means and other effects of the present invention in order to achieve the above objects, a preferred embodiment is described in detail with reference to the drawings.

[prior art]

10‧‧‧Lock nut

11‧‧‧ Groove

20‧‧‧C-wrench

21‧‧‧ jaws

[This new type]

30‧‧‧Disassembly tools

31‧‧‧Working end

32‧‧‧Driver

33‧‧‧ 内孔

34‧‧‧Group holes

35‧‧‧Card sales

36‧‧‧Installation holes

37‧‧‧ ring groove

X‧‧‧ axial

Figure 1 is a schematic view of the appearance of a conventional lock nut.

2 is a schematic view of a conventional C-wrench for rotating a lock nut.

FIG. 3 is a schematic perspective view of the lock nut disassembly tool of the present invention.

4 is a schematic cross-sectional view showing a partial structure of the lock nut disassembly tool of the present invention.

FIG. 5 is a schematic plan view showing the driving end of the lock nut disassembly tool of the present invention.

Figure 6 is a schematic plan view showing the operation end of the lock nut disassembly tool of the present invention.

Please refer to FIG. 3 to FIG. 6 to illustrate an embodiment of the novel lock nut disassembly tool.

The detachable tool 30 is formed into a cylindrical shape and has a working end 31 and a driving end 32. The working end 31 is provided with an inner hole 33. The driving end 32 is provided with a set of connecting holes 34 for defining a connection. The working end 31 and the driving end 32 are oriented in an axial direction X. The working end 31 is provided with four or six clamping pins 35 at equal intervals along the axial direction X of the inner hole 33.

In the embodiment, the clamping pin 35 is a circular cylindrical pin structure having a circular cross section. The working end 31 is provided with four or six mounting holes 36 at the periphery of the inner hole 33, so that the corresponding number of the locking pins are provided. The 35 is inserted and fixed in close fitting with the mounting hole 36. The inner hole 33 is formed as a circular hole; the set of the through hole 34 is formed as a square hole for engaging with the torque wrench to simultaneously rotate to rotate the lock nut; and the outer peripheral surface of the drive end 32 is provided with a ring recess The groove 37 is used for mutually locking with the wrench tool to achieve stable assembly and improve the smoothness of the disassembly and assembly operation.

Thereby, the new lock nut disassembly tool 30 is provided with four or six snap pins 35 on the circumferential side of the inner hole 33 of the working end 31 for matching the groove on the circumferential side of the lock nut. And the driving end 32 of the disassembly tool 30 is formed into a metric size sleeve structure for movably connecting a torque wrench having an adjustable torque value function, and the torque wrench is used to provide a pre-quantized locking force of the lock nut. Ensure the accuracy and uniformity of the locking nut installation, and achieve the best effect of the locking nut installation, so that the existing torque wrench can be operated with the new disassembly tool, which saves the production cost and increases the convenience of use. Technical efficiency.

In summary, the present invention can achieve the above-mentioned various functions through the aforementioned locking nut disassembly tool. It has already met the requirements for patent application, and has filed a patent application according to law, praying for review and early granting of patents. Debian.

30‧‧‧Disassembly tools

31‧‧‧Working end

32‧‧‧Driver

33‧‧‧ 内孔

34‧‧‧Group holes

35‧‧‧Card sales

36‧‧‧Installation holes

37‧‧‧ ring groove

X‧‧‧ axial

Claims (6)

A locking nut disassembly tool is formed into a cylindrical shape and has a working end and a driving end. The working end is provided with an inner hole, and the driving end is provided with a set of connecting holes for defining the connection. The direction of the end and the driving end is an axial direction, and the working end is provided with four or six clamping pins at equal intervals along the axial direction of the circumference of the inner hole. The lock nut disassembly tool according to claim 1, wherein the card pin has a circular cylindrical structure. The lock nut disassembly tool of claim 1, wherein the working end is provided with four or six mounting holes at a periphery of the inner hole, so that a corresponding number of the clamping pins are tightly attached to the mounting hole Fitted and assembled. The lock nut disassembly tool of claim 1, wherein the inner hole is formed as a round hole. The lock nut disassembly tool of claim 1, wherein the set of holes is formed as a square hole. The lock nut dismounting tool of claim 1, wherein the outer peripheral surface of the driving end is provided with a ring groove.