CN110842861A - Grooving lock nut assembly and disassembly tools - Google Patents

Abstract

The invention discloses a grooving locking nut dismounting tool, which comprises a main sliding rail bottom plate, a left sliding plate, a right sliding plate, a thread adjusting chuck, a thread adjusting telescopic pipe and an internal thread adjusting fixed block, wherein the main sliding rail bottom plate is a long strip plate, a long through groove serving as a sliding groove is formed in the main sliding rail bottom plate, matching through grooves are formed in the left sliding plate and the right sliding plate, the left sliding plate and the right sliding plate are connected to two sides of the main sliding rail bottom plate in a sliding mode, the internal thread adjusting fixed block capable of being screwed in the thread adjusting chuck is arranged at the end portions of the left sliding plate and the right sliding plate respectively, the internal thread adjusting fixed block capable of being screwed in the thread adjusting chuck is arranged at each of two ends of the thread adjusting telescopic pipe respectively, the center of the thread adjusting telescopic pipe. The tool has large torque, is not easy to slip, is convenient to realize, has good clamping stability for disassembling and assembling the four-groove locking nut, has large screwing force and has applicability to deep grooves and narrow space areas.

Description

A slotted lock nut disassembly tool

technical field

The invention relates to a nut disassembly and assembly tool, in particular to a slotted locking nut disassembly and assembly tool.

Background technique

In the known disassembly and assembly field of large-scale four-slot locking nuts, there are many types of slotted locking nuts, which are of British and American standards. It is impossible to purchase a unified disassembly and assembly tool, and the functional areas of use are diverse. The corresponding disassembly and assembly positions are inconvenient and difficult to solve.

At present, a crescent wrench is generally used for tightening and loosening the four-slot locking nut. The crescent wrench is a hook at one end hooking a slot of the four-slot locking nut, and the nut is tightened or disassembled by rotation. This kind of wrench has poor practicability, requires a large force during disassembly and assembly, is easy to slip off, and causes harm to the operator. Moreover, one type of crescent wrench generally only corresponds to one type of four-slot locking nut. The cost is high; what is more difficult is that for the slotted round nut installed in a narrow space and relatively closed, due to the narrow operating space, it is inconvenient to use conventional tools to screw it, and it is very difficult to disassemble and assemble.

SUMMARY OF THE INVENTION

The technical problem solved by the present invention is: in order to overcome the deficiencies of the prior art, the present invention proposes a slotted lock nut disassembly and assembly tool, which has good clamping stability for the disassembly and assembly of a four-slot lock nut, and has high screwing strength. Larger and more suitable for deep grooves and space-constrained areas.

The technical solution of the present invention is:

A slotted locking nut disassembly tool, comprising a main slide rail base plate, a left slide plate, a right slide plate, a thread adjustment chuck, a thread adjustment telescopic tube and an inner thread adjustment fixing block,

The bottom plate of the main slide rail is a long strip with a long through slot as a chute, and a matching through slot is opened on the left and right slide plates. The left and right slide plates are connected to the two sides of the main slide rail bottom plate by sliding , the ends of the left slide plate and the right slide plate are respectively provided with internal thread adjustment fixing blocks that can be screwed into the thread adjustment chuck,

Both ends of the threaded adjustment telescopic tube are respectively provided with internal thread adjustment fixing blocks that can be screwed into the threaded adjustment chuck. The center of the threaded adjustment telescopic tube is fixedly connected to the center of the main slide rail bottom plate, and there is a relative relationship between the two. turn.

Further, the thread adjustment chuck includes a stud rotatably connected with the inner thread adjustment fixing block and a square key matched with the slot of the four-slot locking nut, and the square key is rotatably connected to the stud.

Further, the adjustment range of the included angle between the threaded adjustment telescopic tube and the bottom plate of the main slide rail is 0° to 90°, which is applicable to all slotted lock nuts with any included angle between the two half-slotted grooves.

Further, the locking mechanism is a screw and nut locking structure.

Further, the locking mechanism is a hydraulic spring-pneumatic structure, a hydraulic-pneumatic spring is installed at both ends of the base plate of the main slide rail, and the other end of the spring rod is connected with the lower end of the threaded adjustment chuck.

Further, a slidable extension handle is installed on the left and right ends of the bottom surface of the main slide rail. When the four-slot locking nut is disassembled, the movable extension handle at both ends can be slid out to form an extension arm.

Further, the maximum sliding out amount of the extended handle is 1/2 of the length of the left slide plate, which saves 1/3 of the force at the most.

Further, the threaded adjustment telescopic tube is a telescopic tube with a damping structure.

Further, when disassembling and assembling the four-slot locking nut, firstly screw the square key that matches the shape of the side groove of the four-slot locking nut into the inner thread adjusting and fixing block, and adjust the left slide plate and the right slide plate relative to the main slide rail bottom plate. At the same time, adjust the thread adjustment telescopic tube, so that the square key is in the position where it fits with the inner end of the deep groove of the four-slot lock nut, and rotate the thread adjustment chuck, so that the upper end of the square key is close to the four-slot lock nut. At the same time, the uppermost end of the square key is not lower than the upper surface of the four-slot locking nut, and then the left slide plate and the right slide plate are locked on the main slide rail bottom plate through the locking mechanism, and the thread adjusts the telescopic tube and the main slide rail. Bottom plate locked.

Further, after the disassembly and assembly is completed, twist the threaded adjustment telescopic tube and slide the left slide plate and the right slide plate to make the square key leave the deep groove of the four-slot locking nut, and remove the slotted locking nut disassembly and assembly tool.

The advantages of the present invention compared with the prior art are:

(1) The design of the present invention can clamp the four-slot nut, and the design of the thread adjustment chuck column increases the auxiliary supporting force of the chute and the reinforcement of the tool; the design of the chute and the thread adjustment telescopic tube can realize clamping The movement of distance can disassemble four-slot nuts of different sizes; the design of the bottom plate of the main slide rail provides a moving platform and stroke;

(2) The four-slot nut disassembly tool of the present invention is not only low in processing cost, but also very practical, and is particularly suitable for the problem of disassembling and assembling bolts and nuts in the field of international civilian intelligent equipment assembly and standard parts specifications of different national standards;

(3) The tool of the present invention has a large torque and is not easy to slip off, which is easy to implement, and meets and enhances the inability to disassemble and assemble a large number of nuts and bolts, and lacks the handling and use requirements of special tools.

Description of drawings

Fig. 1 is the structural representation of the present invention;

FIG. 2 is a schematic structural diagram of the four-slot locking nut of the present invention.

Detailed ways

The present invention will be further described below with reference to the accompanying drawings.

This embodiment provides a disassembly and assembly tool for a four-slot locking nut, but is not limited to a four-slot nut.

As shown in Figures 1 and 2, the disassembly and assembly tool of the four-slot locking nut of the present invention includes a main slide rail bottom plate 1, a left slide plate 2, a right slide plate 3, a left locking bolt 4, a right locking bolt 5, and a left flange. Lock nut 6 , right flange lock nut 7 , four-slot lock nut 8 , thread adjustment chuck 9 , thread adjustment telescopic tube 10 and internal thread adjustment fixing block 11 .

In the specific production, by using a cold-rolled plate with a length of 500mm, a width of 30mm and a thickness of 6mm, the center-symmetric laser cutting is used, and a long hole with a width of 6mm is cut as the slide rail of the bottom plate, so as to make the main slide Rail base plate 1. Using a 250x25x4mm cold-rolled plate with the same chute as the above chute, weld a boss with an internal thread on the bottom surface of one end of the chute as a slider inserted into the chute of the main rail bottom plate 1 Use, on the position of the right slide plate 3 and the left locking bolt 4 corresponding to the top surface of the boss, a threaded adjustment chuck 9 column that can be inserted into the groove on the side of the slotted locking nut is detachably installed. The column It can be replaced and used according to the size of the groove on the side of the slotted lock nut, so as to make the left sliding plate 2 and the right sliding plate 3. The sliding plate 2 and the right sliding plate 3 are placed on the main slide rail base plate 1 in such a way that the ends of the sides with the boss are opposite each other, and the left locking bolt 4 and the right locking bolt 5 are used to pass through the left and right matching slides respectively. In the groove, tighten the left flange locking nut 6 and the right flange locking nut 7 to the left locking bolt 4 and the right locking bolt 5 respectively, and then adjust the threaded adjustment telescopic tube 10 up and down to make the clamp head. Clamp the slot, and finally adjust the thread adjustment chuck 9 up and down to make the length just right, align with the deep groove, lock and reinforce the dismantling tool, and then complete the overall assembly of the tooling.

When it is necessary to disassemble and assemble the four-slot locking nut 8, first select the uprights suitable for the side grooves of the four-slot locking nut 8 and fix them on the left sliding plate 2 and the right sliding plate 3 respectively, and then insert their respective bosses into the main sliding plate respectively. In the chute of the rail base plate 1, the distance between the left sliding plate 2 and the right sliding plate 3 to the two uprights just matches the distance between the two diametrically opposite grooves on the four-slot locking nut 8, so that the two uprights Just enough to be inserted into the grooves on both sides of the four-slot locking nut 8, adjust the thread adjustment telescopic tube 10 at the same time, so that the square key is in the position where it fits with the inner end of the deep groove of the four-slot locking nut 8, and rotate the thread adjusting chuck 9 , so that the upper end of the square key is close to the lower surface of the four-slot locking nut 8, and the uppermost end of the square key is not lower than the upper surface of the four-slot locking nut 8, and then the left locking bolt 4 and the right locking Insert the tightening bolt 5 into the chute of the left slide plate 2 and the right slide plate 3 respectively matched with the main slide rail bottom plate 1, install the left flange locking nut 6 and the right flange locking nut 7, and tighten the left flange locking Nut 6, right flange lock nut 7, so that the tool has effective support and tightening.

Next, the disassembly and assembly work can be carried out, twist the threaded adjustment telescopic tube 10 and slide the left slide plate 2 and the right slide plate 3, so that the square key leaves the deep groove of the four-slot locking nut 8, remove the slotted locking nut for disassembly and assembly The tool, specifically, the handles formed by the assembled main slide rail base plate 1 and the left slide plate 2 and the right slide plate 3 on both sides are operated by the skilled personnel with both hands, and screwed, then the disassembly and assembly can be easily carried out, and the disassembly and assembly are completed. Afterwards, the tool can be simply removed. This tool is suitable for all locknuts with split grooves.

The structure of the invention has been applied to the workshop dismantling tool, and the specification of the thread adjustment chuck can be changed at any time during processing, so as to adapt to the width and size of the deep groove of the four-slot locking nut, the scope of application will be greatly expanded, and the application is very simple. It is convenient and can be used for large four-slot locking nuts not limited to four-slots, especially in areas with relatively small space, the operation is simple and convenient, and it is convenient for workers to operate.

The content not described in detail in the specification of the present invention belongs to the well-known technology of those skilled in the art.

Claims (10)

1. A tool for disassembling and assembling a slotted lock nut, characterized in that it comprises a main slide rail bottom plate (1), a left slide plate (2), a right slide plate (3), a thread adjustment chuck (9), and a thread adjustment telescopic tube (10) and the inner thread adjustment fixing block (11), The bottom plate (1) of the main slide rail is a long strip with a long through slot serving as a chute. The sliding plate (3) is connected to both sides of the main sliding rail bottom plate (1) by sliding, and the ends of the left sliding plate (2) and the right sliding plate (3) are respectively provided with internal threads which can be screwed into the thread adjusting chuck (9). Adjust the fixed block (11), Internal thread adjustment fixing blocks (11) that can be screwed into the thread adjustment chuck (9) are respectively provided on both ends of the thread adjustment telescopic pipe (10), and the center of the thread adjustment telescopic pipe (10) is connected to the main slide rail bottom plate ( 1) The center position is fixedly connected, and relative rotation can occur between the two. 2. A slotted lock nut disassembly and assembly tool according to claim 1, characterized in that the thread adjustment chuck (9) comprises a stud rotatably connected with the inner thread adjustment fixing block (11) and a four-slotted stud. The slotted matching square key of the lock nut (8) is rotatably connected to the stud. 3. A tool for disassembling and assembling a slotted lock nut according to claim 1, characterized in that the adjustment range of the included angle between the threaded adjustment telescopic tube (10) and the main slide rail bottom plate (1) is 0° to 90° for all slotted locknuts with any angle between the two split grooves. 4 . The slotted locking nut disassembly and assembly tool according to claim 1 , wherein the locking mechanism is a screw-nut locking structure. 5 . 5. A tool for disassembling and assembling a slotted locking nut according to claim 1, characterized in that the locking mechanism is a hydraulic spring pneumatic structure, and a hydraulic pneumatic spring is installed at both ends of the main slide rail bottom plate (1), and the spring rod The other end is connected with the lower end of the thread adjusting chuck (9). 6. A slotted locking nut disassembly and assembly tool according to claim 1, characterized in that a slidable extension handle is installed on the left and right ends of the lower surface of the main slide rail bottom plate (1), and the disassembly and assembly of four When locking the nut (8) in the slot, the movable extension handles at both ends can be slid out to form an extension arm. 7. A kind of slotted lock nut disassembly and assembly tool according to claim 6, characterized in that, the maximum sliding out amount of the extension handle is 1/2 of the length of the left slide plate (2), saving 1/3 of the force at the most . 8. A tool for disassembling and assembling a slotted lock nut according to claim 1, characterized in that the threaded adjustment telescopic tube (10) is a telescopic tube with a damping structure. 9. A tool for disassembling and assembling a slotted locking nut according to claim 1, characterized in that, when disassembling and assembling the four-slotted locking nut (8), the side surface of the four-slotted locking nut (8) is concave firstly. The square key with the matching groove shape is screwed into the inner thread adjustment fixing block (11) to adjust the relative position of the left slide plate (2) and the right slide plate (3) relative to the main slide rail bottom plate (1), and at the same time adjust the thread adjustment telescopic tube ( 10), make the square key fit with the inner end of the deep groove of the four-slot locking nut (8). At the same time, the uppermost end of the square key is not lower than the upper surface of the four-slot locking nut (8), and then the left slide plate (2) and the right slide plate (3) are locked on the main slide rail bottom plate by the locking mechanism (1), the threaded adjustment telescopic tube (10) is locked with the main slide rail bottom plate (1). 10. A tool for disassembling and assembling a slotted lock nut according to claim 1, characterized in that, after disassembling and assembling, screw the threaded adjustment telescopic tube (10) and slide the left sliding plate (2) and the right sliding plate (3) ), move the square key away from the deep groove of the four-slot lock nut (8), and remove the slotted lock nut disassembly tool.

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