CN207178532U

CN207178532U - A kind of axial direction braking ring-type composite card key for rotary shaft

Info

Publication number: CN207178532U
Application number: CN201721173873.8U
Authority: CN
Inventors: 白鹏; 贾刚; 孙伟; 张延春
Original assignee: Iron Coal Multi Operation And Mechanic School Mechanical And Electrical Factory
Current assignee: Iron Coal Multi Operation And Mechanic School Mechanical And Electrical Factory
Priority date: 2017-09-14
Filing date: 2017-09-14
Publication date: 2018-04-03
Anticipated expiration: 2027-09-14

Abstract

The utility model discloses a kind of axial direction braking ring-type composite card key for rotary shaft, including the card key ring body that is surrounded by multistage arc card section and the clip of the card key ring body can be locked form, formed with the groove for accommodating the clip on the outer wall of every section of arc card section.The quantity of the arc card section is 2-4 sections, is located on the outer wall of every section of arc card section formed with boss, described groove in the boss, and described clip is jump ring or elastic steel traveler.Card key ring body that the utility model is surrounded using multistage arc card section and by locked clip device, installation on the rotary shaft when compare that its intensity is larger relative to traditional clip spring structure, larger axial load can be born, be hardly damaged.

Description

A kind of axial direction braking ring-type composite card key for rotary shaft

Technical field

A kind of axial brake is the utility model is related to, concretely relates to a kind of axial direction braking for rotary shaft Annular combustion card key.

Background technology

Axially position braking component is applied relatively extensively in the prior art, is the component with significant application value.With colliery Exemplified by various transporter chain groups, the transparent cover end of chain group positions braking component using jump ring as shaft end, and the boring cover end of chain group is adopted Braking component is positioned by the use of shaft end pressure plate as shaft end.

Underground coal mine transporter chain group is natural in rotation to produce axial force due to itself quality and diameter, and one Axial force caused by denier points to main shaft transparent cover end, and bearing will be made axially to transport when axial force is more than the interference power of axle and bearing Dynamic, the final axial force can be applied on jump ring.When this axial force is more than the intensity that jump ring can carry, jump ring may result in Damage, produce the phenomenon of the failure that bearing block is axially scurried out.And inclination angle be present in fully-mechanized mining working, and chain group splined end is diagonally downward When, or during chain group rotate counterclockwise, the axial force for pointing to splined end can be all produced, increase the carrying burden of jump ring.When both State simultaneously in the presence of, jump ring can be destroyed so as to produce failure within the extremely short time.Similarly, when caused axial force is pointed to During main shaft boring cover end, shaft end pressure plate because of follower bolt fatigue fracture, can cause the failure of shaft end pressure plate failure.

In the prior art, there is load in the axially position braking component using Coal Transportation machine with chain group as representative, jump ring Can be low, it is more easily damaged；Shaft end pressure plate because of follower bolt fatigue fracture, can cause the failure of shaft end pressure plate failure.

It is intended that obtaining, a kind of technique effect is excellent, can bear the axial brake of very big axial load.

Utility model content

The technical problems to be solved in the utility model be to provide it is a kind of bear very big axial load be used for rotary shaft Axially braking ring-type composite card key.

In order to solve the above technical problems, a kind of axial direction braking ring-type composite card key for rotary shaft of the utility model, bag Include the card key ring body surrounded by multistage arc card section and the clip of the card key ring body can be locked and form, the outer wall of every section of arc card section On formed with the groove for accommodating the clip.

As improvement of the present utility model, the quantity of the arc card section is 2-4 sections.

It is described formed with boss on the outer wall of every section of arc card section as further improvement of the utility model Groove is located in the boss.

As another improvement of the present utility model, described clip is jump ring or elastic steel traveler.

Using the annular combustion card key axially braked for rotary shaft of said structure, due to being to use multistage arc card The card key ring body that surrounds of section and by locked clip device, installation on the rotary shaft when relative to traditional clip spring structure compare its intensity compared with Greatly, larger axial load can be born, be hardly damaged, the hop count of arc card section can determine reasonable selection by the diameter of axle and actual condition 2nd, 3,4 sections.Axial load is not subject to due to forming reeded part on every section of arc card section outer wall, therefore forms reduced width Boss can economize on material, reduce manufacturing cost.

Brief description of the drawings

The utility model is described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is that a kind of axial direction braking ring-type composite card key for rotary shaft of the utility model removes the main view knot after clip Structure schematic diagram.

Fig. 2 is the profile of the line A-A along Fig. 1.

Fig. 3 is a kind of main structure diagram of axial direction braking ring-type composite card key for rotary shaft of the utility model.

Fig. 4 is the schematic cross-sectional view of the line B-B along Fig. 3.

Embodiment

Referring to Fig. 1-Fig. 4, a kind of axial direction braking ring-type composite card key for rotary shaft of the utility model, including by more Card key ring body 20 that section arc card section 10 surrounds and the clip 30 of the card key ring body 20 can be locked form, every section of arc card section 10 It is placed on outer wall formed with the groove 11 for accommodating the clip, clip 30 in the groove 11.The quantity of the arc card section 10 is 2-4 sections.Boss 12 formed with reduced width on the outer wall of every section of arc card section 10, it is convex that described groove 11 is located at this In platform 12.Described clip 30 is jump ring or elastic steel traveler.

Claims

A kind of 1. axial direction braking ring-type composite card key for rotary shaft, it is characterised in that：Including by multistage arc card section（10） The card key ring body surrounded（20）And the card key ring body can be locked（20）Clip（30）Form, every section of arc card section（10）Outer wall On formed with the groove for accommodating the clip（11）.
2. the axial direction braking ring-type composite card key for rotary shaft as claimed in claim 1, it is characterised in that：The arc card Section（10）Quantity be 2-4 sections.
3. the axial direction braking ring-type composite card key for rotary shaft as claimed in claim 1, it is characterised in that：Every section of arc Shape card section（10）Outer wall on formed with boss（12）, described groove（11）Positioned at the boss（12）It is interior.
4. the axial direction braking ring-type composite card key for rotary shaft as claimed in claim 1, it is characterised in that：Described clip （30）For jump ring or elastic steel traveler.