CN213562233U

CN213562233U - Lock nut dismounting device

Info

Publication number: CN213562233U
Application number: CN202022344462.9U
Authority: CN
Inventors: 韦靖永; 陆兆刚; 唐水清; 张栋梁; 韦莹; 杨洪源
Original assignee: Guangxi Liuzhou Iron and Steel Group Co Ltd; Guangxi Iron and Steel Group Co Ltd
Current assignee: Guangxi Liuzhou Iron and Steel Group Co Ltd; Guangxi Iron and Steel Group Co Ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-06-29
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses a locking nut dismounting device, which relates to the technical field of locking nut auxiliary tools and comprises a positioning seat and a movable telescopic spanner, wherein the movable telescopic spanner is connected with the positioning seat in a sliding way; the positioning seat comprises an insertion block, a guide rod and a positioning block, the insertion block and the positioning block are respectively fixed at two ends of the guide rod, an insertion hole is formed in the insertion block, and a sliding groove communicated with the insertion hole is formed in the guide rod; the flexible spanner of activity includes connecting rod, stopper and spanner, and in jack and spout were inserted to the one end of connecting rod, the other end passed through stopper and spanner fixed connection, and stopper and locating piece set up in opposite directions, are fixed with the fixed pin of relative setting on stopper and the locating piece respectively, install the locking set screw who is used for locking fixed flexible spanner on the positioning seat. The utility model provides a current large-scale nut dismouting receive the damage easily, have the problem of potential safety hazard.

Description

Lock nut dismounting device

Technical Field

The utility model belongs to the technical field of the locking nut auxiliary fixtures technique and specifically relates to a locking nut dismouting device.

Background

In the metallurgical steel industry, locking nuts with large sizes can be installed on equipment such as rollers and grinding machines in a steel rolling mill, and the large locking nuts can be disassembled and assembled for many times according to the use conditions of the equipment. For example, a roller needs to be ground by a grinding machine in the production process, a grinding wheel on the grinding machine needs to be fastened and installed by using one or more grinding wheel locking nuts, when the grinding wheel is worn and needs to be replaced, the grinding wheel locking nuts need to be detached, but the grinding wheel locking nuts become more fastened after the equipment runs for a period of time, and the detachment is difficult. The existing working flow is that when the grinding wheel is disassembled, the disassembly can be realized by inserting auxiliary tools such as an inner hexagonal wrench or a screw, a steel needle and the like into a disassembly hole of a locking nut and knocking by using an iron hammer, because the depth of the disassembly hole is not deep, and the stress of the disassembly hole is single in the long-term knocking and disassembling process, the disassembly hole is deformed and damaged, the steel needle or the inner hexagonal wrench is easy to vibrate and fly out of the disassembly hole when being knocked in the disassembling process, and the disassembly process has potential safety hazards. When the crescent spanner is used for disassembling and assembling the locking nut, the bottom jaw of the crescent spanner is pressed on the locking nut to easily damage and deform the locking nut, and the model is single and inconvenient to use.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lock nut dismouting device, this kind of device can solve current large-scale nut dismouting and receive the damage easily, has the problem of potential safety hazard.

In order to solve the above problem, the utility model discloses a technical scheme is: the locking nut dismounting device comprises a positioning seat and a movable telescopic spanner, wherein the movable telescopic spanner is connected with the positioning seat in a sliding manner; the positioning seat comprises an insertion block, a guide rod and a positioning block, the insertion block and the positioning block are respectively fixed at two ends of the guide rod, an insertion hole is formed in the insertion block, and a sliding groove communicated with the insertion hole is formed in the guide rod; the adjustable telescopic wrench comprises a connecting rod, a limiting block and a wrench, wherein one end of the connecting rod is inserted into the jack and the chute, the other end of the connecting rod passes through the limiting block and the wrench fixed connection, the limiting block and the locating block are oppositely arranged, the limiting block and the locating block are respectively and fixedly provided with a fixing pin which is oppositely arranged, and the positioning seat is provided with a locking and positioning screw which is used for locking and fixing the adjustable telescopic wrench.

In the technical scheme of the locking nut dismounting device, a more specific technical scheme can also be that: the connecting rod is a cuboid, and each edge of the connecting rod is chamfered.

Furthermore, a positioning anti-falling screw is arranged on the connecting rod and is close to the free end of the connecting rod.

Furthermore, the locking and positioning screw is mounted on the insertion block, and the top end of the locking and positioning screw is lower than the upper end face of the insertion block.

Furthermore, a limiting groove is formed in the connecting rod and is arranged along the length direction of the connecting rod, and the locking and positioning screw extends into the limiting groove.

Furthermore, the plug-in mounting block is provided with two locking and positioning screws, and the two locking and positioning screws are arranged along the length direction of the limiting groove.

Furthermore, the fixing pin is in threaded connection with the limiting block and the positioning block.

Since the technical scheme is used, compared with the prior art, the utility model following beneficial effect has:

1. the locking nut dismounting device is formed by slidably connecting the positioning seat and the movable telescopic spanner, the fixing pin is aligned to a dismounting hole of the locking nut, shrinkage clamping positioning is carried out, the positioning screw is locked, the locking nut can be dismounted by swinging the spanner, the operation and installation are carried out, the potential safety hazard of operation is removed, the locking nut is not easy to damage in the dismounting process, the damage to equipment is reduced, and the dismounting efficiency is high; the spanner is the flexible telescopic structure, can satisfy multiple size and use, conveniently stores the customization again.

2. The movable telescopic spanner is connected into a cuboid, so that the movable telescopic spanner can be prevented from rotating relative to the positioning seat, and quick and accurate disassembly, assembly and positioning are facilitated; each side chamfer of connecting rod can improve flexible smooth and easy nature, also the flexible spanner of quick assembly disassembly activity.

3. The connecting rod is provided with a positioning anti-drop screw which can prevent the positioning seat from being separated from the movable telescopic spanner; the screw is also convenient for disassembly and assembly.

4. The locking positioning screw is arranged on the insertion block and extends into the limiting groove on the connecting rod, so that the locking reliability can be improved.

5. The fixed pin is threaded connection structure, is convenient for change according to the lock nut dismouting hole of difference.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the lock nut attaching and detaching device.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a sectional view taken in the direction of a-a in fig. 2.

Fig. 4 is a schematic view of the lock nut mounting and dismounting device in a use state.

The reference numbers illustrate: 1. positioning seats; 1-1, positioning blocks; 1-2, a guide rod; 1-21, a chute; 1-3, inserting a block; 2. a movable telescopic wrench; 2-1, connecting rod; 2-11, a limiting groove; 2-2, a limiting block; 2-3, a wrench; 3. a fixing pin; 4. positioning an anti-drop screw; 5. locking the positioning screw; 6. and locking the nut.

Detailed Description

The invention will be described in more detail with reference to the following embodiments:

the lock nut dismounting device shown in fig. 1 to 3 mainly includes a positioning seat 1, a movable telescopic wrench 2, a fixing pin 3, a positioning anti-drop screw 4 and a locking positioning screw 5, wherein the positioning seat 1 and the movable telescopic wrench 2 are slidably connected to form a dismounting device which can be adjusted to adapt to lock nuts 6 with different sizes, as shown in fig. 4. The positioning seat 1 comprises an insertion block 1-3, a guide rod 1-2 and a positioning block 1-1, wherein the insertion block 1-3 and the positioning block 1-1 are respectively fixed at two ends of the guide rod 1-2; the insertion blocks 1-3 are rectangular blocks which are horizontally arranged, insertion holes are formed in the insertion blocks 1-3 along the length direction, and two ends of each insertion hole extend to two ends of each insertion block 1-3 respectively; two guide rods 1-2 which are arranged in parallel are arranged between the insertion block 1-3 and the positioning block 1-1, a sliding groove 1-21 communicated with the insertion hole is formed between the two guide rods 1-2, and the width of the sliding groove 1-21 is the same as that of the insertion hole; the positioning block 1-1 is vertically arranged at one end of the guide rod 1-2 so as to be abutted against the outer peripheral surface of the locking nut 6, the lower part of the positioning block 1-1 is in threaded connection with a fixing pin 3, and the exposed section of the fixing pin 3 is matched with the dismounting hole of the locking nut 6. The adjustable telescopic wrench 2 comprises a connecting rod 2-1, a limiting block 2-2 and a wrench 2-3, one end of the connecting rod 2-1 is inserted into the jack and the chute 1-21 of the positioning seat 1, and the other end is fixedly connected with the wrench 2-3 through the limiting block 2-2; the connecting rod 2-1 is a cuboid in sliding fit with the insertion block 1-3 and the guide rod 1-2, and each edge of the connecting rod 2-1 is chamfered, so that the smoothness of insertion, extraction and sliding can be improved; a limiting block 2-2 of the adjustable telescopic wrench 2 and a positioning block 1-1 of the positioning seat 1 are oppositely arranged, another fixing pin 3 is connected to the limiting block 2-2 in a threaded manner, and the two fixing pins 3 are coaxially and oppositely arranged; fixed pin 3 is movable detachable construction, and it can be according to user demand, 6 dismantlement hole shapes of lock nut customize the processing, changes suitable fixed pin 3 in the operating mode of difference. In order to conveniently lock and fix the movable telescopic wrench 2 and the positioning seat 1, two locking and positioning screws 5 are mounted on an insertion block 1-3 of the positioning seat 1, a limiting groove 2-11 is formed in the upper end face of the connecting rod 2-1 along the length direction of the connecting rod, and the two locking and positioning screws 5 are arranged along the length direction of the limiting groove 2-11; when locking, the bottom end of the locking positioning screw 5 is inserted into the limiting groove 2-11 to be abutted against the bottom of the groove, and the top end of the locking positioning screw is lower than the upper end surface of the insertion block 1-3. The position of the connecting rod 2-1 close to the free end thereof is provided with a positioning anti-drop screw 4, the positioning anti-drop screw 4 can ensure that the positioning seat 1 and the adjustable telescopic wrench 2 can not drop off in the opening and closing process, and the positioning anti-drop screw 4 can be screwed off when the adjustable telescopic wrench 2 needs to be disassembled and assembled.

The locking nut dismounting device can be used for dismounting the locking nuts 6 of various sizes through the opening and closing adjustment between the adjustable telescopic wrench 2 and the positioning seat 1. When the positioning block is used, the movable telescopic wrench 2 is pulled towards the direction departing from the positioning seat 1 until the distance between the two fixing pins 3 is larger than the outer diameter of the locking nut 6, the fixing pin 3 on the positioning seat 1 is firstly inserted into a dismounting hole of the locking nut 6, and the positioning block 1-1 is abutted to the outer peripheral surface of the locking nut 6; then the adjustable telescopic spanner 2 is pushed inwards, and the connecting rod 2-1 is inserted into the insertion block 1-3 and the guide rod 1-2, so that the fixing pin 3 on the adjustable telescopic spanner 2 can be quickly and accurately inserted into the other assembling and disassembling hole on the locking nut 6; after the limiting block 2-2 is abutted against the outer peripheral surface of the locking nut 6, the two locking positioning screws 5 on the inserting blocks 1-3 are screwed, so that the movable telescopic wrench 2 and the positioning seat 1 are fixedly connected into a whole, and the locking nut 6 is clamped between the positioning block 1-1 and the limiting block 2-2, as shown in fig. 4; the grasping wrench 2-3 swings clockwise or counterclockwise, and then the locking nut 6 can be disassembled. After the whole work is finished, the dismounting device and the locking nut 6 are taken out together, the locking nut 6 does not need to be additionally pried, the picking is convenient, the locking and positioning screw 5 is loosened at last, and the movable telescopic wrench 2 is opened to separate the dismounting device from the locking nut 6.

Claims

1. The utility model provides a lock nut dismouting device which characterized in that: the adjustable telescopic wrench is connected with the positioning seat in a sliding manner; the positioning seat comprises an insertion block, a guide rod and a positioning block, the insertion block and the positioning block are respectively fixed at two ends of the guide rod, an insertion hole is formed in the insertion block, and a sliding groove communicated with the insertion hole is formed in the guide rod; the adjustable telescopic wrench comprises a connecting rod, a limiting block and a wrench, wherein one end of the connecting rod is inserted into the jack and the chute, the other end of the connecting rod passes through the limiting block and the wrench fixed connection, the limiting block and the locating block are oppositely arranged, the limiting block and the locating block are respectively and fixedly provided with a fixing pin which is oppositely arranged, and the positioning seat is provided with a locking and positioning screw which is used for locking and fixing the adjustable telescopic wrench.

2. The lock nut attaching and detaching device according to claim 1, wherein: the connecting rod is a cuboid, and each edge of the connecting rod is chamfered.

3. The lock nut attaching and detaching device according to claim 2, wherein: the connecting rod is provided with a positioning anti-falling screw, and the positioning anti-falling screw is close to the free end of the connecting rod.

4. The lock nut attaching and detaching device according to claim 3, wherein: the locking and positioning screw is arranged on the insertion block, and the top end of the locking and positioning screw is lower than the upper end face of the insertion block.

5. The lock nut attaching and detaching device according to claim 4, wherein: the connecting rod is provided with a limiting groove, the limiting groove is arranged along the length direction of the connecting rod, and the locking and positioning screw extends into the limiting groove.

6. The lock nut attaching and detaching device according to claim 5, wherein: the plug-in mounting block is provided with two locking positioning screws, and the two locking positioning screws are arranged along the length direction of the limiting groove.

7. The lock nut attaching and detaching device according to any one of claims 1 to 6, wherein: the fixing pin is in threaded connection with the limiting block and the positioning block.