CN104132069A

CN104132069A - Stud locking plate

Info

Publication number: CN104132069A
Application number: CN201410326936.3A
Authority: CN
Inventors: 白坤; 李振; 李少锋; 商永振; 赵海涛
Original assignee: LUOYANG PNEUMATIC TOOL CO Ltd
Current assignee: LUOYANG PNEUMATIC TOOL CO Ltd
Priority date: 2014-07-10
Filing date: 2014-07-10
Publication date: 2014-11-05

Abstract

The invention relates to a stud locking plate in the field of mechanical connection. The locking plate comprises an inner ring, an outer ring, studs and nuts. The outer surface of the inner ring is provided with two levels of conical surfaces, the inner surface of the outer ring is matched with the outer surface of the inner ring, the inner ring and the outer ring are connected through the studs, the end, correspondingly located outside an inner ring flange face, of each stud is connected with a gasket and one nut, and the gaskets are matched with the nuts. The locking plate can effectively avoid abrasion and deformation of threads of the outer ring, and accordingly the aims of prolonging the service life of the outer ring and reducing use cost and manufacturing cost are achieved.

Description

A kind of stud locking plate

[technical field]

The present invention relates to mechanical coupling field, especially relate to a kind of stud locking plate that connects two kinds of component by stud.

[background technique]

Known, between general component, adopt of the connecting mode of transferring power has binding axial organ or flange connect more, still, and under the operating mode of high pulling torque alternate load, impulsive load, oneself is substituted the connecting mode of key by keyless mode gradually, such as by connecting between axle and axle sleeve; At present, connecting between the passing shaft of high pulling torque and axle sleeve adopts this coupling arrangement of locking plate more, this coupling arrangement is a kind of keyless locking device, this device can apply clamping force to axle sleeve from outside, making to form mechanical compress between axle and axle sleeve coordinates, thereby rely on the stiction between axle and axle sleeve to carry out transmitting torque, and locking plate itself does not transmit any moment or thrust load; Because locking plate is mainly to make to produce interference between the inner and outer rings conical surface by bolt in outer shroud screw thread place rotation generation axial force to connect, stress forms mechanical compress cooperation after being passed to main shaft surface, therefore, when practical application, bolt outer shroud screw thread easy to wear in rotary course also easily makes the distortion of outer shroud screw thread, the lighter causes when again locking plate being installed occurring being difficult for the phenomenon of installing, heavy directly cause scrapping of this outer shroud, and this has increased user's manufacture cost greatly;

[summary of the invention]

In order to overcome the deficiency in background technique, the invention discloses a kind of stud locking plate, described locking plate can effectively be avoided wearing and tearing and the distortion of outer shroud screw thread, thereby reaches the object that increases outer shroud working life and reduce user's manufacture cost.

For achieving the above object, the present invention adopts following technological scheme:

A stud locking plate, described locking plate comprises interior ring, outer shroud, stud and nut; The outer surface of described interior ring is made as two-stage step surface, and two-stage step surface is all made as the conical surface; The internal surface of described outer shroud is made as the corresponding supporting two-stage step surface that coincide of outer surface with interior ring; Interior ring and the outer shroud end face middle part between two-stage step surface separately is evenly provided with a plurality of holes, the hole of interior ring is made as the unthreaded hole of perforation, the hole of outer shroud is made as tapped blind hole, and interior ring is connected by a plurality of stud that arrange in a plurality of holes mutually corresponding with outer shroud; One of being positioned at outside ring flange face of described stud correspondence is connected with supporting pad and nut; The even a plurality of dismounting silks hole that is laid with of flanged surface of described interior ring.

Owing to adopting technological scheme as above, the present invention has following beneficial effect:

The precession pattern that stud locking plate of the present invention adopts stud to coordinate with nut, i.e. nut precession produce axial force on stud screw thread, thus make the cooperation of main shaft surface formation mechanical compress; Due to the rotation that coordinates having adopted in when application between nut and stud, therefore, described locking plate can effectively be avoided wearing and tearing and the distortion of outer shroud screw thread, this has not only increased the working life of outer shroud, but also has reached the object of being convenient to repeatedly installing/dismounting and reducing user's manufacture cost.

[accompanying drawing explanation]

Fig. 1 is schematic diagram of the present invention;

Fig. 2 is that the A of Fig. 1 is to schematic diagram.

In figure: 1, interior ring; 2, the conical surface; 3, outer shroud; 4, stud; 5, pad; 6, nut; 7, dismounting silk hole; 8, axle sleeve; 9, main shaft.

[embodiment]

By the following examples, can explain in more detail the present invention, disclose object of the present invention and be intended to protect all changes and improvements in the scope of the invention, the present invention is not limited to the following examples:

Stud locking plate described in 1～2 by reference to the accompanying drawings, described locking plate comprises interior ring 1, outer shroud 3, stud 4 and nut 6, the outer surface of described interior ring 1 is made as two-stage step surface, and this two-stage step surface is all set to the conical surface 2, the internal surface of described outer shroud 3 is made as the corresponding supporting two-stage step surface that coincide of outer surface with interior ring 1, and the two-stage step surface of outer shroud 3 internal surfaces contacts with corresponding the coincideing of two-stage step surface of interior ring 1 outer surface, interior ring 1 and outer shroud 3 lay respectively at the middle part of the end face between two-stage step surface separately and are evenly provided with a plurality of holes, the hole of interior ring 1 is made as the unthreaded hole of perforation, the hole of outer shroud 3 is made as tapped blind hole, interior ring 1 is connected by a plurality of stud 4 that arrange in a plurality of holes mutually corresponding with outer shroud 3, these stud 4 correspondences are positioned at of ring 1 flanged surface outside and are connected with supporting pad 5 and nut 6, can utilize nut 6 and the axial force producing that rotatablely moves of stud 4 to drive outer shroud 3 to do axial motion along the conical surface 2 of interior ring 1, now, between the corresponding conical surface of interior ring 1 and outer shroud 3, produce interference fit stress, interference fit stress is delivered in main shaft 9 surface generation prestressing force by interior ring 1 and the axle sleeve 8 being socketed on axle sleeve 8, and the frictional force that prestressing force produces on main shaft 9 surfaces can be offset the moment of torsion between axle sleeve 8 and main shaft 9, moment of flexure and axial force, thereby with this realize axle sleeve 8 and main shaft 9 without key transmission.

While implementing stud locking plate of the present invention, first opsition dependent requirement packs interior ring 1 in outer shroud 3 into, a plurality of stud 4 is encircled after a plurality of perforation unthreaded holes on 1 in corresponding insertion respectively, then screw in tapped blind hole corresponding on outer shroud 3 to motionless state, corresponding pad 5 and nut 6 on the headgear exposing at each stud 4 respectively, and turn nut 6 to motionless state, then, described locking plate is sleeved on axle sleeve 8, again main shaft 9 is inserted to the mesopore of axle sleeve 8, and allow axle sleeve 8 slide into correct position on main shaft 9, then in accordance with regulations sequentially, prescribed torque is tightened each nut 6 on described locking plate gradually, when nut 6 reaches specified screw-down torque, due to the effect of interior ring 1 with the outer shroud 3 corresponding conical surfaces that contact, on the outer round surface of main shaft 9, producing huge radial pressure is fastened on main shaft 9 axle sleeve 8, thereby reach the object of transmitting torque, when locking plate needs dismountings described, only need unclamp one by one in order nut 6, make interior ring 1 progressively separated with outer shroud 3, until each nut 6 is not when stress, axial force elimination, interior ring 1 and outer shroud 3 can throw off, as required, for being further convenient to dismounting, can be at the flanged surface of interior ring 1 even a plurality of dismountings silks hole 7 that is laid with, thereby when interior ring 1 is separated with outer shroud 3, can interior ring 1 be ejected by dismounting silk hole 7 use bolts, then from main shaft 9, remove axle sleeve 8, and finally from axle sleeve 8, take off locking plate of the present invention,

Because having adopted the relative rotary motion between nut 6 and stud 4, described locking plate replaced rotatablely moving of current used bolt and outer shroud tapped hole, therefore, described locking plate not only can effectively reduce wearing and tearing and the distortion of outer shroud screw thread when installing, dismantling, but also described in can obviously improving, states the installation number of times of locking plate; Meanwhile, because can there is not relative displacement campaign between the stud 4 in described locking plate and outer shroud 3, so described locking plate can effectively shorten the degree of depth of outer shroud tapped hole during fabrication, thereby reached accordingly the object that reduces manufacture cost; In addition,, if find that there is in actual applications nut 6 or stud 4 appearance wearing and tearing or metabolies, only the nut 6 of wearing and tearing or distortion or stud 4 need be replaced to the locking plate described in can normally using; In practical application, described locking plate can be determined according to the size of transmitting torque the size of nut 6 and stud 4, and described locking plate can produce according to the needs of transmitting torque corresponding model.

Part not in the detailed description of the invention is prior art, therefore the present invention is not described in detail.

Claims

1. a stud locking plate, is characterized in that: described locking plate comprises interior ring (1), outer shroud (3), stud (4) and nut (6); The outer surface of described interior ring (1) is made as two-stage step surface, and two-stage step surface is the conical surface (2); The internal surface of described outer shroud (3) is made as the corresponding supporting two-stage step surface that coincide of outer surface with interior ring (1); The corresponding end face middle part between two-stage step surface separately of interior ring (1) and outer shroud (3) is evenly provided with a plurality of holes, the hole of interior ring (1) is made as the unthreaded hole of perforation, the hole of outer shroud (3) is made as tapped blind hole, and interior ring (1) is connected by a plurality of stud (4) that arrange in a plurality of holes mutually corresponding with outer shroud (3); One of being positioned at outside ring (1) flanged surface of described stud (4) correspondence is connected with supporting pad (5) and nut (6); The even a plurality of dismounting silks hole (7) that is laid with of flanged surface of described interior ring (1).