CN208074050U

CN208074050U - A kind of speed-limiting device

Info

Publication number: CN208074050U
Application number: CN201820337606.8U
Authority: CN
Inventors: 李成; 袁帅伟; 崔松
Original assignee: Anhui University of Science and Technology
Current assignee: Anhui University of Science and Technology
Priority date: 2018-03-13
Filing date: 2018-03-13
Publication date: 2018-11-09
Anticipated expiration: 2028-03-13

Abstract

The utility model is related to a kind of speed-limiting devices of mining equiment, it is characterised in that：Including rotatable parts, fixed outer ring, collar bush I, collar bush II, adjustment spring, the fixed outer ring is fixed on pedestal, and ensure that fixed outer ring is overlapped with by the axis of speed limit rotation axis, the collar bush I coordinates with II bolt of collar bush, the rotatable parts are inserted on collar bush II, present apparatus structure design is simply ingenious, only rotatable parts, fixed outer ring, collar bush I, collar bush II, 5 individual parts of adjustment spring, it is simple in structure, fitted and removed easily, practicability is stronger, and the present apparatus is conducive to the extension of service life of equipment, be conducive to improve safety and the reliability of speed-limiting device.

Description

A kind of speed-limiting device

Technical field

The utility model is related to safety equipment design field more particularly to a kind of speed-limiting devices.

Background technology

In various rotating machineries, broken down in operation process it is possible that rotating speed is too fast or even stall etc. Situation falls the case where causing casualties as elevator will appear straight line in the case of out of control, needs speed-limiting device to rotation Equipment carries out control speed limit, and various rotating machinerys can all generate vibration, and increasing stall by speed flies to transfer to cause total system The vibration of equipment can aggravate, and be unfavorable for the normal work of total system equipment.

Utility model content

The purpose of this utility model is to overcome the deficiencies in the prior art, provide a kind of speed-limiting device.

The utility model is achieved through the following technical solutions：

A kind of speed-limiting device, it is characterised in that：Including rotatable parts, fixed outer ring, collar bush I, collar bush II, adjusting bullet Spring, the rotatable parts include inner ring, flabellum I, flabellum II, flabellum III, outer ring, and the inside of the inner ring is equipped with spline I, inner ring Flabellum I is welded in outside, and outer ring is welded in I upper end of the flabellum, and the flabellum II, flabellum III are identical as I structure of flabellum, flabellum II, Flabellum III is welding with inner ring, outer ring connection type, and outer baffle block I, outer baffle block II, outer baffle block are welded on the outside of the outer ring III, strip leads tooth I, strip leads tooth II,

As the optimal technical scheme of the utility model, be welded on the inside of the fixed outer ring internal stop I, internal stop II, Internal stop III, convex guide block I, convex guide block II.

As the optimal technical scheme of the utility model, I inside of the collar bush is equipped with keyway I, and I outside of collar bush is equipped with External screw thread.

As the optimal technical scheme of the utility model, II inside left part of the collar bush is equipped with keyway II, collar bush II Inside right part is equipped with internal thread, and II outside of collar bush is equipped with spline II.The spline II and I clearance fit of spline.Spline II with Spline I can be mutually axially free to slide.

When onsite application, first fixed outer ring is fixed on pedestal, and ensure fixed outer ring with it is coaxial by speed limit rotation axis, Rotatable parts are inserted on collar bush II, then by adjustment spring on collar bush II by spline fitted afterwards, then by collar bush I Screwed on collar bush II by screw-thread fit, and ensure that each corresponding surface of keyway I and keyway II overlaps, ensure collar bush I with Collar bush II can be inserted in key by speed limit rotation axis, and hereafter the collar bush of screw-thread fit I, collar bush II are inserted in and are limited In the rotation axis of speed, and ensure when rotatable parts rotate, the thrust that flabellum I, flabellum II, flabellum III generate makes rotatable parts edge Spline II is moved axially to side of the fixed outer ring with convex guide block I, convex guide block II, when work, by the rotation of speed limit rotation axis The rotation of rotatable parts is driven to be generated by flabellum I, flabellum II, flabellum III when being become larger by the rotary speed of speed limit rotation axis Thrust will overcome the elastic force of adjustment spring that rotatable parts is made to carry the side axially shifting that strip leads tooth I to fixed outer ring along spline II Dynamic, when rotatable parts are moved to certain position, strip, which leads tooth I, strip leads tooth II will rotate touching and be streaked with rotatable parts Convex guide block I, convex guide block II, strip, which leads tooth I, at this time, strip leads tooth II will drive rotatable parts squeeze adjustments spring to carry out axial shifting It is dynamic, and axial movement at this time will make internal stop I, internal stop II, internal stop III simultaneously with outer baffle block I, outer baffle block II, outer baffle block III generates collision, is fixed on pedestal by fixed outer ring, to be limited at this time by the rotation of speed limit rotation axis, speed limit speed Size can screw in the length of collar bush II or change the coefficient of elasticity of tight adjustment spring to adjust when I screw-thread fit of collar bush.

Compared with prior art, the utility model has the beneficial effects that：The present apparatus is internal stop I, interior when speed is excessive Block II, internal stop III and outer baffle block I, outer baffle block II, outer baffle block III do not generate ablation before the collision, are conducive to equipment The extension of service life, when collision, each block all participated in collision, was conducive to the reliability and safety for improving device, and this dress Only rotatable parts are set, fixed outer ring, collar bush I, collar bush II, 5 individual parts of adjustment spring are simple in structure, are conducive to It saves manufacturing cost, and speed-limiting device installation and dismantles extremely convenient, practicability is stronger.

Description of the drawings

Fig. 1 is the three-dimensional overall assembling figure of the utility model.

Fig. 2 is the partial assembled enlarged drawing of the utility model.

Fig. 3 is the three-dimensional overall assembling exploded view of the utility model.

Fig. 4 is the rotatable parts three dimensional sectional view of the utility model.

Fig. 5 is the fixation outer ring three dimensional sectional view of the utility model.

Fig. 6 is I three dimensional sectional view of collar bush of the utility model.

Fig. 7 is II three dimensional sectional view of collar bush of the utility model.

In figure：1, rotatable parts；11, inner ring；111, spline I；12, flabellum I；13, flabellum II；14, flabellum III；15, outer Circle；151, outer baffle block I；152, outer baffle block II；153, outer baffle block III；154, strip leads tooth I；155, strip leads tooth II；2, fixed Outer ring；21, internal stop I；22, internal stop II；23, internal stop III；24, convex guide block I；25, convex guide block II；3, collar bush I；31, Keyway I；32, external screw thread；4, collar bush II；41, keyway II；42, internal thread；43, spline II；5, adjustment spring.

Specific implementation mode

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7.

1, a kind of speed-limiting device, it is characterised in that：Including rotatable parts 1, fixed outer ring 2, collar bush I 3, collar bush II 4, Adjustment spring 5, the rotatable parts 1 include inner ring 11, flabellum I 12, flabellum II 13, flabellum III 14, outer ring 15, the inner ring 11 Inside be equipped with spline I 111, flabellum I 12 is welded in the outside of inner ring 11, and outer ring 15, the flabellum II are welded in I 12 upper end of the flabellum 13, flabellum III 14 is identical as I 12 structure of flabellum, and flabellum II 13, flabellum III 14 and inner ring 11,15 connection type of outer ring are weldering It connects, the outside of the outer ring 15 is welded with outer baffle block I 151, outer baffle block II 152, outer baffle block III 153, strip and leads tooth I 154, strip Lead tooth II 155.

2, the inside of the fixed outer ring 2 is welded with internal stop I 21, internal stop II 22, internal stop III 23, convex guide block I 24, convex Guide block II 25.

3, I 3 inside of the collar bush is equipped with keyway I 31, and I 3 outside of collar bush is equipped with external screw thread 32.

4, II 4 inside left part of the collar bush is equipped with keyway II 41, and II 4 inside right part of collar bush is equipped with internal thread 42, axis II 4 outside of ring set is equipped with spline II 43.The spline II 43 and I 111 clearance fit of spline.Spline II 43 can phase with spline I 111 Mutual axially free sliding.

When onsite application, first fixed outer ring 2 is fixed on pedestal, and ensure fixed outer ring 2 with it is same by speed limit rotation axis Axis, after rotatable parts 1 are inserted on collar bush II 4, then by adjustment spring 5 on collar bush II 4 by spline fitted, then will Collar bush I 3 is screwed in by screw-thread fit on collar bush II 4, and ensures that each corresponding surface of keyway I 31 and keyway II 41 overlaps, Ensure that collar bush I 3 and collar bush II 4 can be inserted in key by speed limit rotation axis, hereafter by the collar bush of screw-thread fit I 3, Collar bush II 4 is inserted in the rotation axis by speed limit, and is ensured when rotatable parts 1 rotate, flabellum I 12, flabellum II 13, flabellum III 14 thrusts generated make rotatable parts 1 along spline II 43 to a side axle of the fixed outer ring 2 with convex guide block I 24, convex guide block II 25 To movement, when work, by the rotation of the rotated by rotation component 1 of speed limit rotation axis, when by the rotary speed of speed limit rotation axis When becoming larger, the thrust generated by flabellum I 12, flabellum II 13, flabellum III 14 will overcome the elastic force of adjustment spring 5 to make rotatable parts 1 The side for leading tooth I 154 with strip to fixed outer ring 2 along spline II 43 moves axially, when rotatable parts 1 are moved to certain position It sets, strip, which leads tooth I 154, strip leads tooth II 155 will rotate touching with rotatable parts 1 and streak convex guide block I 24, convex guide block II 25, Strip, which leads tooth I 154, at this time, strip leads tooth II 155 will drive 1 squeeze adjustments spring 5 of rotatable parts to move axially, and at this time Axial movement will make internal stop I 21, internal stop II 22, internal stop III 23 simultaneously with outer baffle block I 151, outer baffle block II 152, outer Block III 153 generates collision, is fixed on pedestal by fixed outer ring 2, to be limited at this time by the rotation of speed limit rotation axis, limit The size for degree of hastening can screw in the length of collar bush II 4 or change the elasticity system of tight adjustment spring 5 when I 3 screw-thread fit of collar bush It counts to adjust.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model Protection domain within.

Claims

1. a kind of speed-limiting device, it is characterised in that：Including rotatable parts (1), fixed outer ring (2), collar bush I (3), collar bush II (4), adjustment spring (5), the rotatable parts (1) include inner ring (11), flabellum I (12), flabellum II (13), flabellum III (14), The inside of outer ring (15), the inner ring (11) is equipped with spline I (111), and flabellum I (12), the flabellum I are welded on the outside of inner ring (11) (12) upper end welding outer ring (15), the flabellum II (13), flabellum III (14) are identical as flabellum I (12) structure, flabellum II (13), Flabellum III (14) is welding with inner ring (11), outer ring (15) connection type, and outer baffle block I is welded on the outside of the outer ring (15) (151), outer baffle block II (152), outer baffle block III (153), strip lead tooth I (154), strip leads tooth II (155).

2. a kind of speed-limiting device according to claim 1, it is characterised in that：In being welded on the inside of the fixed outer ring (2) Block I (21), internal stop II (22), internal stop III (23), convex guide block I (24), convex guide block II (25).

3. a kind of speed-limiting device according to claim 1, it is characterised in that：Keyway I is equipped on the inside of the collar bush I (3) (31), external screw thread (32) is equipped on the outside of collar bush I (3).

4. a kind of speed-limiting device according to claim 1, it is characterised in that：Left part is equipped on the inside of the collar bush II (4) Keyway II (41), collar bush II (4) inside right part are equipped with internal thread (42), spline II (43), institute are equipped on the outside of collar bush II (4) Spline II (43) and spline I (111) clearance fit are stated, spline II (43) can be mutually axially free to slide with spline I (111).