A detachable split lock nut

Abstract

This utility model provides a detachable split lock nut, relating to the field of lock nut technology. It includes a lower lock nut and an upper lock nut. The lower lock nut has an external threaded hole on its inner side and an external fixing edge on its outer side. The upper lock nut has two sets of front positioning holes on its upper part, and rear positioning holes on both the front and rear sides of the external fixing edge, with positioning bolts installed in the rear positioning holes. The lower part of the upper lock nut has a threaded bevel with a trapezoidal bevel structure, and an internal threaded hole on its upper inner side. In this utility model, the upper and lower lock nuts are integrated into one unit. Positioning holes are designed at both the front and rear. The front end is fitted with a positioning pin inserted into the positioning hole for engagement, and the rear end is fitted with a positioning screw. The front positioning pin engages with the positioning hole to restrict the planar freedom of the upper and lower lock nuts, while the positioning screw, when tightened, restricts the vertical freedom. The combined design is more flexible and practical.

Description

Technical Field

[0001] This utility model relates to the field of lock nut technology, specifically to a detachable split lock nut. Background Technology

[0002] In the early stages of LCD glass production, the No. 1 roller was primarily used to clamp the substrate glass during abnormal production, ensuring the motherboard could be smoothly pulled down by the No. 1 roller. During normal production, the No. 1 roller idled without contacting the glass substrate. Under normal conditions, the No. 1 roller's lifespan ranged from over 100 to over 500 days. Because the No. 1 roller was located inside the furnace, where the temperature reached 850℃ and the temperature outside was also over 100℃, the locking nut for securing the No. 1 roller, after long-term use, became difficult to disassemble when replacing the No. 1 roller. Due to the high temperature environment, limited working space, and the proximity of the working area to the furnace, operators were prone to burns from contact with hot components. It was necessary to use an angle grinder to cut the locking nut of the No. 1 roller bearing, which was difficult to operate. Due to space constraints, operators were prone to cutting the No. 1 roller drive shaft during the cutting process, causing damage to the roller core and increasing the replacement time of the No. 1 roller. Therefore, to further reduce the operational difficulty and improve work efficiency, improvements were made to the original locking nut.

[0003] The specification of a split-type locking nut for a conical motor in the prior art (publication number CN214742636U) mentions that "the locking nut has a threaded hole, and the locking nut has an opening groove along its axial direction and through it. The locking nut includes a first locking nut split body and a second locking nut split body. The first locking nut split body is in the shape of a hollow frustum. The inner conical surface of the pressure plate and the outer conical surface of the first locking nut split body are connected in a fit. The second locking nut split body and the clamping plate are both in the shape of hollow rings. The clamping plate is tightly fitted on the body of the second locking nut split body. The first locking nut split body and the second locking nut split body are integrally formed. The cross-section of the pressure plate is L-shaped." However, the locking nut in the prior art is difficult to disassemble under high temperature conditions, which affects the continued use of the installed equipment. Forcibly removing it will cause the mating part with the locking nut to be cut and damaged. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, a detachable split lock nut is provided to solve the problems in existing technologies where lock nuts are difficult to disassemble under high temperatures, affecting the continued use of the installed equipment, and that forcibly removing them would cause cutting damage to the mating parts with the lock nut.

[0005] To achieve the above objectives, a detachable split lock nut is provided, comprising a lower lock nut and an upper lock nut. The lower lock nut has an external threaded hole on its inner side and an external fixing edge on its outer side. The upper lock nut has an outer sleeve opening on its lower outer side, and the lower lock nut is screwed onto the outer sleeve opening by threads. The upper lock nut has two sets of front positioning holes on its upper part, and the upper lock nut and the lower lock nut are detachably connected.

[0006] Furthermore, both the front and rear sides of the outer fixed edge are provided with rear positioning holes, and positioning bolts are installed in the rear positioning holes. The positioning bolts are detachable.

[0007] Furthermore, the lower part of the upper lock nut is provided with a toothed corner, which adopts a trapezoidal corner structure, and the upper inner side of the upper lock nut is provided with an internal threaded hole.

[0008] Furthermore, a positioning pin is installed in the front positioning hole, and the positioning pin is a detachable structure.

[0009] Furthermore, the lower lock nut is provided with a stepped countersunk hole, and the upper part of the stepped countersunk hole is a Φ9mm through hole, and the lower part is a threaded hole.

[0010] Furthermore, the upper lock nut is provided with a Φ9mm through hole, and the lower lock nut is configured to cooperate with the upper lock nut, and both the lower lock nut and the upper lock nut are made of GH4163 alloy material.

[0011] The beneficial effects of this utility model are as follows:

[0012] 1. This utility model locks the positioning screw. In order to prevent the positioning screw from being difficult to disassemble under high temperature conditions after long-term use, the split lock nut is designed with a cutting groove. This allows the operator to use a handheld cutting machine to accurately cut the positioning screw according to the direction of the cutting groove, splitting the split lock nut into two parts, making it easier to replace.

[0013] 2. This utility model consists of an upper lock nut and a lower lock nut. In order to ensure that the two lock nuts can be machined after assembly, and that the thread accuracy and tooth angle can be aligned during assembly, each of the upper and lower lock nuts is designed with a positioning hole. The front hole is engaged by a positioning pin, and the rear hole is engaged by a positioning screw. The positioning pin restricts the freedom of displacement in the planar direction, and the positioning screw restricts the vertical freedom after tightening. This ensures the accuracy requirements of the thread after the upper and lower lock nuts are combined into one. At the same time, the front and rear positioning pins and positioning screws are engaged to ensure that the thread accuracy remains unchanged after multiple combinations of the two lock nuts. Attached Figure Description

[0014] Figure 1 These are renderings of an embodiment of the present utility model;

[0015] Figure 2 This is a front view schematic diagram of an embodiment of the present utility model;

[0016] Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model;

[0017] Figure 4 This is a schematic diagram of the interior of the lower lock nut in an embodiment of the present utility model;

[0018] Figure 5 This is a schematic diagram of the inside of the locking nut in an embodiment of the present utility model.

[0019] In the diagram: 1. Lower lock nut; 10. Rear positioning hole; 11. External threaded hole; 12. External fixing edge; 2. Upper lock nut; 20. Internal threaded hole; 21. Front positioning hole; 22. Outer sleeve opening; 23. Thread corner. Detailed Implementation

[0020] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. The specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model. Specific details such as particular system structures and technologies are provided to facilitate a more thorough understanding of the embodiments of this utility model. The described embodiments are some, but not all, of the embodiments disclosed herein. However, those skilled in the art should understand that the present utility model can also be implemented in other embodiments without these specific details. All other embodiments obtained by those skilled in the art based on the embodiments of this disclosure without inventive effort are within the scope of protection of this disclosure.

[0021] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0022] Figure 1 These are renderings of an embodiment of the present utility model. Figure 2 This is a front view schematic diagram of an embodiment of the present utility model. Figure 3 This is a cross-sectional schematic diagram of an embodiment of the present utility model. Figure 4 This is a schematic diagram of the interior of the lower lock nut in an embodiment of the present utility model. Figure 5 This is a schematic diagram of the inside of the locking nut in an embodiment of the present utility model.

[0023] Reference Figures 1 to 5 As shown, this utility model provides a detachable split lock nut, including a lower lock nut 1 and an upper lock nut 2. The lower lock nut 1 has an external screw hole 11 on its inner side and an external fixing edge 12 on its outer side. The upper lock nut 2 has an outer sleeve opening 22 on its lower outer side, and the lower lock nut 1 is screwed onto the outer sleeve opening 22 by threads. The upper lock nut 2 has two sets of front positioning holes 21 on its upper part, and the upper lock nut 2 and the lower lock nut 1 are detachably connected.

[0024] In this embodiment, rear positioning holes 10 are provided on both the front and rear sides of the outer fixed edge 12, and positioning bolts are installed in the rear positioning holes 10. The positioning bolts are detachable. The lower part of the upper lock nut 2 is provided with a tooth angle 23, which adopts a trapezoidal corner structure. The upper inner side of the upper lock nut 2 is provided with an internal thread hole 20. A positioning pin is installed in the front positioning hole 21. The positioning pin is detachable.

[0025] As a preferred embodiment, this utility model locks the positioning screw. In order to prevent the positioning screw from being difficult to disassemble after long-term use under high temperature conditions, the split lock nut is designed with a cutting groove, which makes it convenient for operators to use a handheld cutting machine to accurately cut the positioning screw according to the direction of the cutting groove, splitting the split lock nut into two parts, making it easier to replace flexibly.

[0026] In this embodiment, the lower lock nut 1 is provided with a stepped countersunk hole, and the upper part of the stepped countersunk hole is a Φ9mm through hole and the lower part is a threaded hole; the upper lock nut 2 is provided with a Φ9mm through hole, and the lower lock nut 1 and the upper lock nut 2 are fitted together, and both the lower lock nut 1 and the upper lock nut 2 are made of GH4163 alloy material.

[0027] As a preferred embodiment, this utility model consists of an upper lock nut and a lower lock nut. To ensure that the two lock nuts can be machined after assembly, and that the thread accuracy and tooth angle can be aligned during assembly, each of the upper and lower lock nuts is designed with four positioning holes. The front hole is engaged by a positioning pin, and the rear hole is engaged by a positioning screw. The positioning pin restricts the degree of freedom of displacement in the planar direction, and the positioning screw restricts the vertical degree of freedom after tightening. This ensures that the thread accuracy requirements are met after the upper and lower lock nuts are combined into one. At the same time, the front and rear positioning pins and positioning screws are engaged to ensure that the thread accuracy remains unchanged after multiple combinations of the two lock nuts.

[0028] This invention effectively solves the problem that lock nuts are difficult to disassemble under high temperatures, affecting the continued use of the installed equipment, and that forcibly removing them can cause damage to the mating parts. The invention features a single upper and lower lock nut design with positioning holes at the front and rear. The front end is fitted with a positioning pin that fits into the positioning hole, while the rear end is fitted with a positioning screw. The positioning pin at the front end fits into the positioning hole, restricting the freedom of movement of the upper and lower lock nuts in the planar direction. The positioning screw is tightened to further restrict the freedom of movement in the vertical direction. The combined design is more flexible and practical.

[0029] The above embodiments are used to explain and illustrate the present utility model, and not to limit the utility model. Any modifications and changes made to the present utility model within the spirit and scope of the claims should be included within the protection scope of the present utility model.

Claims

1. A detachable split lock nut, characterized in that: It includes a lower lock nut (1) and an upper lock nut (2). The lower lock nut (1) has an external threaded hole (11) on its inner side and an external fixing edge (12) on its outer side. The upper lock nut (2) has an outer sleeve opening (22) on its lower outer side and the lower lock nut (1) is screwed into the outer sleeve opening (22) by threads. The upper lock nut (2) has two sets of front positioning holes (21) on its upper part and the upper lock nut (2) and the lower lock nut (1) are connected separately.

2. The detachable split lock nut according to claim 1, characterized in that, The outer fixed edge (12) is provided with rear positioning holes (10) on both the front and rear sides, and positioning bolts are installed in the rear positioning holes (10), and the positioning bolts are detachable.

3. A detachable split lock nut according to claim 1, characterized in that, The lower part of the upper lock nut (2) is provided with a toothed corner (23), which adopts a trapezoidal corner structure, and the upper inner side of the upper lock nut (2) is provided with an internal thread hole (20).

4. A detachable split lock nut according to claim 1, characterized in that, A positioning pin is installed in the front positioning hole (21), and the positioning pin is a detachable structure.

5. A detachable split lock nut according to claim 1, characterized in that, The lower lock nut (1) is provided with a stepped countersunk hole, and the upper part of the stepped countersunk hole is a Φ9mm through hole, and the lower part is a threaded hole.

6. A detachable split lock nut according to claim 1, characterized in that, The upper lock nut (2) is provided with a Φ9mm through hole, and the lower lock nut (1) is provided in conjunction with the upper lock nut (2). Both the lower lock nut (1) and the upper lock nut (2) are made of GH4163 alloy material.

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