CN110757381B

CN110757381B - Quick assembly disassembly's screw thread fastener

Info

Publication number: CN110757381B
Application number: CN201810844701.1A
Authority: CN
Inventors: 张进生; 张晓宇; 王兴雷
Original assignee: Shandong University
Current assignee: Shandong University
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2021-12-21
Anticipated expiration: 2038-07-27
Also published as: CN110757381A

Abstract

The invention discloses a quick-dismounting thread fastening device, which comprises a nut base, wherein the nut base comprises a support pedestal, a support platform, a fixed plate and a rotating base, the support pedestal and the support platform are connected into a cylindrical component through a bolt, a hole slightly wider than the diameter of the bolt is processed in the cylindrical component, a plurality of sliding chutes which are uniformly distributed are radially processed, thread clamping claws are arranged on the sliding chutes, the fixed plate limits that a rotating chuck arranged on the support platform can only do rotating motion, the support platform and the rotating base are fixedly connected through the bolt and can adjust the relative angle of the support platform and the rotating base, and a rotating rod is hinged on the rotating base through a rotating shaft; the thread chuck mechanism comprises a rotary chuck and a thread clamping jaw, wherein the upper surface and the lower surface of the rotary chuck are provided with plane threads which are meshed with the thread clamping jaw, and the end part of the rotary chuck in the inward direction is provided with threads with a determined diameter; the rotating rod is a wrench hinged on the rotating base. The invention has simple operation, quick assembly and disassembly and high structural strength.

Description

Quick assembly disassembly's screw thread fastener

Technical Field

The invention relates to a quick-dismounting threaded fastening device, and belongs to the technical field of threaded fasteners.

Background

Of the conventional mechanical couplings, a screw coupling occupies a very important position. When mechanical equipment is used and different functional modules or different models of molds need to be frequently replaced, the bolts and the nuts are frequently disassembled, and the work efficiency is ensured by the quick disassembling speed; the replacement of bolt and nut generally uses different types of wrenches, and has certain requirements on operation space. At present, the disassembly speed when the bolt and the nut are used cannot meet the actual working requirement, and the production performance of equipment is wasted.

Disclosure of Invention

The invention aims to provide a quick-dismounting threaded fastening device to solve the technical problem that in the prior art, threaded connection dismounting speed is low.

In order to achieve the purpose, the invention adopts the following technical scheme:

a quick-dismounting screw thread fastening device comprises a nut base consisting of a support pedestal, a support table and a fixing plate, wherein the nut base is used for being sleeved on a bolt to be fastened; a thread chuck mechanism consisting of a rotary chuck and a thread clamping jaw is arranged in the nut base, the rotary chuck is arranged between the support table and the fixed plate and can only do rotary motion, and the thread clamping jaw is arranged in the support table seat and can only do radial motion relative to the bolt to be tightened; a wrench mechanism consisting of a rotating rod and a rotating base is arranged above the nut base; the wrench mechanism is used for driving the rotating chuck.

Furthermore, the nut base consisting of the supporting pedestal, the supporting platform and the fixing plate is a cylindrical component; the supporting platform is of a cylindrical disc-shaped structure, and the bottom of the supporting platform is provided with a groove matched with the thread clamping claw; the supporting pedestal comprises a plurality of sector plates; the inside of the cylindrical member which is connected with the supporting platform through the connecting piece is a hole which is wider than the diameter of the bolt to be tightened, and the plurality of sliding grooves are uniformly distributed in the radial direction of the cylindrical member.

Further, the number of the sector plates is the same as that of the threaded clamping claws, and the threaded clamping claws are arranged between the adjacent sector plates.

Further, the lower surface of the spin chuck is provided with a flat thread which engages with the threaded clamping jaw.

Further, the screw clamping jaw is a slider having a flat screw thread on an upper surface thereof, and a screw thread of a certain diameter is provided at an end portion in an inward direction thereof.

Furthermore, the thread clamping claws comprise a plurality of thread clamping claws which are uniformly arranged along the circumferential direction of the rotating chuck and the supporting platform.

Furthermore, the rotating base is fixedly connected with the supporting table, and the position of the rotating base can be adjusted at multiple angles when the rotating base is installed; the rotating rod is hinged on the rotating base through a rotating shaft.

Furthermore, the supporting table and the rotating base are fixedly connected through bolts, the relative angle between the supporting table and the rotating base can be adjusted, and the rotating rod is hinged to the rotating base through the rotating shaft.

Furthermore, the rotating base is hinged with the rotating rod, and the lower part of the rotating base is connected with the supporting platform through a bolt.

The method for fastening by using the quick-dismounting threaded fastening device comprises the steps of finding an initial position point, fastening the device and dismounting the device;

the initial position point is found through the following method: when the invention is installed and used for the first time, the angle between the rotating base and the supporting platform needs to be adjusted, so that the rotating rod has enough rotating space;

the fastening is realized by the following method:

sleeving the device on a stud and contacting with the mounting surface of a tire vulcanizer, fixing a support table by one hand, and rotating a rotating chuck by the other hand until the rotating chuck cannot rotate; and pressing the rotating rod to enable the rotating rod to be vertical to the axial direction of the stud, pressing the rotating chuck with one hand, and grasping the end part of the rotating rod with the other hand to screw.

The disassembly of the invention is realized by the following method:

the rotating rod is loosened, and the rotating chuck is rotated, so that the device is directly and integrally taken down.

The invention has the beneficial effects that:

1. the quick disassembly and assembly of the threaded connecting device can be realized manually, the operation is simple, the work occasions and equipment needing to disassemble and assemble the threaded connecting piece repeatedly can be facilitated, and the improvement of the work efficiency is facilitated;

2. the requirement on the size of a working space is small, and the working principle of the invention shows that the rotating rod can apply large pretightening force only by rotating a small angle, which is beneficial to improving the utilization rate of the space;

3. the structure of the invention is designed to be a self-locking structure, the components can not slide, the stability is strong, the clamping effect is good, and the use strength requirement can be met;

4. corresponding assemblies can be designed for bolts of different sizes, the bolt is suitable for various sizes, the practicability is high, the manufacturing process is simple, the cost is low, and the bolt is favorable for popularization and use.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.

FIG. 1 is an overall cross-sectional view of the present invention;

FIG. 2 is an isometric view of the invention in its entirety;

FIG. 3 is an exploded view of the apparatus of the present invention;

FIG. 4 is a partial cross-sectional view of an embodiment of the present invention;

FIG. 5 is an isometric view of an example of the present invention;

in the figure, 1, a thread clamping claw, 2, a supporting pedestal, 3, a supporting platform, 4, a long hexagon head bolt, 5, a fixing plate, 6, a short hexagon head bolt, 7, a rotating base, 8, a rotating shaft, 9, a rotating chuck, 10, a rotating rod, 11, a tire mold, 12, the device of the invention, 13, a tire vulcanizer, 14 and a stud.

Detailed Description

It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

As introduced in the background art, when mechanical equipment in the prior art needs to be frequently replaced with different functional modules or different models of molds, bolts and nuts are frequently disassembled, and the work efficiency is ensured by a high disassembling speed; the replacement of bolt and nut generally uses different types of wrenches, and has certain requirements on operation space. At present, the disassembly speed when using bolt and nut can not satisfy the actual work demand, has caused the waste to the production performance of equipment, in order to solve above technical problem, this application has provided a quick assembly disassembly's screw thread fastener and method.

In an exemplary embodiment of the present application, as shown in figure 1,

example (b):

in the example partial cross-sectional view of fig. 4, stud 14 is attached at one end to tire mold 11 and at the other end to tire vulcanizer 13 by apparatus 12 of the present invention, apparatus 12 of the present invention being a quick-release threaded fastening device comprising a nut base, a threaded chuck mechanism and a wrench mechanism.

The nut base comprises a support pedestal 2, a support table 3, a fixing plate 5 and a rotating base 7, the support pedestal 2 and the support table 3 are connected into a cylindrical component through bolts 4, holes slightly wider than the diameter of a stud 14 are machined in the cylindrical component, a plurality of sliding grooves which are uniformly distributed are radially machined, threaded clamping claws 1 are installed on the sliding grooves, the fixing plate 5 limits a rotating chuck 9 installed on the support table to only rotate, the support table 3 and the rotating base 7 are fixedly connected through bolts 6, the support table 3 is provided with 6 bolt holes, the rotating base 7 is provided with 3 bolt holes, the relative position is adjusted through the matching and fixing of different bolt holes, and a rotating rod 10 is hinged to the rotating base 7 through a rotating shaft 8;

the thread chuck mechanism comprises a rotary chuck 9 and a thread clamping claw 1, wherein the upper surface and the lower surface of the rotary chuck 9 are provided with plane threads and are meshed with the thread clamping claw 1, the thread clamping claw 1 is a sliding block of which the upper surface is provided with the plane threads, and the end part in the inward direction is provided with threads with determined diameters;

the wrench mechanism comprises a swivelling lever 10, which swivelling lever 10 is a wrench hinged on the swivel base 7.

The screw clamping jaws 1 are provided in plurality and are arranged uniformly in the circumferential direction of the spin chuck and the support table. The supporting pedestal comprises a plurality of sector plates, but the number of the sector plates is equal to that of the threaded clamping claws, and the threaded clamping claws are arranged between the adjacent sector plates; in the figure, a preferred embodiment is shown, wherein the number of the thread clamping claws 1 and the number of the sector plates are 3;

the supporting platform is a cylindrical disc-shaped structure, and the bottom of the supporting platform is provided with a groove matched with the thread clamping claw.

The support pedestal and the support platform form a component, a hole slightly wider than the diameter of the bolt is formed in the component, and a plurality of sliding grooves are uniformly distributed in the radial direction.

The operation method of the quick-dismounting threaded fastening device comprises the steps of finding an initial position point, fastening the quick-dismounting threaded fastening device and dismounting the quick-dismounting threaded fastening device.

The initial position point is found through the following method: when the present invention is first installed and used, the angle between the rotating base 7 and the supporting table 3 needs to be adjusted so that the rotating rod 10 has a sufficient rotating space.

The fastening is realized by the following method: sleeving the device 12 on a stud 14 and contacting with the mounting surface of a tire vulcanizer 13, fixing a support table 3 with one hand, and rotating a rotating chuck 9 with the other hand until the rotating chuck cannot rotate; the pivot lever 12 is pressed down to be perpendicular to the axial direction of the stud 14, the spin chuck 9 is pressed with one hand, and the end of the pivot lever 10 is grasped with the other hand and tightened.

The disassembly of the invention is realized by the following method: the rotating rod 10 is loosened, the rotating chuck 9 is rotated, and the device 12 is directly and integrally taken down.

The working principle of the invention is as follows:

because the support pedestal 2 and the support table 3 are internally provided with holes wider than the diameter of the stud 14, the whole support pedestal and the support table can be sleeved on the stud 14 and moved to be attached to the surface of the tire vulcanizer 13, the rotary chuck 9 is rotated, 3 threaded clamping claws 1 are used for inwards clamping the stud 14 by utilizing the principle of a three-jaw chuck, at the moment, the whole mechanism is similar to a nut, and the process of screwing the nut to the surface of the tire vulcanizer 13 is omitted. Due to the self-locking effect of the chuck, the threaded clamping claw 1 cannot loosen the stud due to the pretightening force, and the stud 14 can be clamped or disassembled by pressing the rotating rod 10 and rotating. In addition, the common nut clamping operation requires a space for putting down the wrench and requires enough rotating space, and because the bottom of the nut clamping device is close to the surface of the tire vulcanizer 13, the nut clamping device can be screwed down only by screwing a small angle, so that the rotating space is saved, and the rotating rod 10 is integrated as the wrench. The stud 14 does not need to be disassembled and is fixed in position, and the initial position and the final position of the rotating rod 10 cannot be changed when pre-tightening is started each time; therefore, the installation position of the rotating rod 10 needs to be adjusted when the device is used for the first time, so that the rotating rod 10 has enough rotating space, and the adjustment of the installation position is realized by changing the bolt connection of different positions of the supporting platform 3 and the rotating base 7.

The invention designs that the support platform 3 is provided with 6 bolt holes, the rotating base 7 is provided with 3 bolt holes, the direction of the handle is adjusted by matching and fixing different bolt holes, and when the wrench is rotated, the wrench rotating base and the support platform are rotated

Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and various modifications and variations can be made by those skilled in the art without inventive efforts based on the technical solutions of the present invention.

Claims

1. A quick-dismounting thread fastening device is characterized by comprising a nut base consisting of a support pedestal, a support table and a fixing plate, wherein the nut base is used for being sleeved on a bolt to be fastened; a thread chuck mechanism consisting of a rotary chuck and a thread clamping jaw is arranged in the nut base, the rotary chuck is arranged between the support table and the fixed plate and can only do rotary motion, and the thread clamping jaw is arranged in the support table seat and can only do radial motion relative to the bolt to be tightened; a wrench mechanism consisting of a rotating rod and a rotating base is arranged above the nut base; the wrench mechanism is used for driving the rotating chuck;

the nut base consisting of the supporting pedestal, the supporting platform and the fixing plate is a cylindrical member, a hole wider than the diameter of the bolt to be fastened is formed in the cylindrical member connected with the supporting pedestal through the connecting piece and used for being integrally sleeved on the stud, the cylindrical member is integrally similar to a nut, and a plurality of sliding grooves are uniformly distributed in the radial direction of the cylindrical member; the supporting platform is of a cylindrical disc-shaped structure, and the bottom of the supporting platform is provided with a groove matched with the thread clamping claw; the supporting pedestal comprises a plurality of sector plates;

the rotating base is fixedly connected with the supporting table, and the position of the rotating base can be adjusted at multiple angles when the rotating base is installed; the rotating rod is hinged on the rotating base through a rotating shaft.

2. A quick-release threaded fastening device as claimed in claim 1, wherein the number of said sector plates is the same as the number of said threaded clamping jaws provided between adjacent sector plates.

3. A quick-release threaded fastener as claimed in claim 1 wherein said lower surface of said spin chuck is provided with a flat thread for engagement with said threaded gripping jaw.

4. A quick-release threaded fastening device according to claim 1 wherein said threaded clamping jaw is a slider with a flat thread on its upper surface and a thread of a determined diameter at its inwardly directed end.

5. A quick-release threaded fastening device as claimed in claim 1, wherein said thread clamping jaws comprise a plurality of jaws arranged uniformly in the circumferential direction of said spin chuck and said support table.