CN109877779B - Auxiliary tightening mechanism for train wheel bolts and nuts - Google Patents
Auxiliary tightening mechanism for train wheel bolts and nuts Download PDFInfo
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- CN109877779B CN109877779B CN201910357461.7A CN201910357461A CN109877779B CN 109877779 B CN109877779 B CN 109877779B CN 201910357461 A CN201910357461 A CN 201910357461A CN 109877779 B CN109877779 B CN 109877779B
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Abstract
A train wheel bolt and nut auxiliary tightening mechanism relates to a tightening mechanism. The bolt support is provided with an inner hexagonal core screw jack and a blind rivet fixture block, an annular boss is arranged outside the seat disc, and a threaded blind hole I is arranged below the seat disc; annular boss has bolt through-hole two, recess and cylinder mounting hole under the transition dish, there is bolt through-hole one at the bottom of the recess, the bolt carousel has with the bolt carousel concentric setting and two sets of mounting through-holes that the diameter is different, there is threaded blind hole one mounting through-hole periphery, hexagon socket head cap screw is connected with the bolt support, the bolt support is connected with the piston rod of cylinder, the bolt support overcoat is equipped with the seat dish, the seat dish inserts in the mounting through-hole and is connected with the bolt carousel, the transition dish lower extreme is connected with cylinder body and the suit is in the cylinder piston rod outside, the transition dish upper end is connected with the seat dish lower extreme. The invention ensures the simultaneous axial and circumferential positioning of the bolt in the bolt tightening process, and improves the bolt tightening efficiency and the tightening quality.
Description
Technical Field
The invention relates to a tightening mechanism, in particular to an auxiliary tightening mechanism for bolts and nuts of a train wheel, and belongs to the technical field of train wheel assembly.
Background
With the progress of science and technology, the application of automatic equipment becomes more and more extensive, and it has become a great trend to replace heavy physical labor with the automatic equipment. In particular, the tightening of bolts and nuts has been gradually replaced by automation because of its high labor frequency and high strength. During bolt tightening, there are both circumferential and axial degrees of freedom in the bolt, which hinder the efficiency and quality of tightening the bolt.
Disclosure of Invention
The invention aims to solve the problems in the background technology and provides an auxiliary tightening mechanism for bolts and nuts of a train wheel.
The invention adopts the following technical scheme: a train wheel bolt and nut auxiliary tightening mechanism comprises a bolt inserting rotary table, a plurality of inner hexagonal core screws, a plurality of bolt supports, a plurality of seat discs, a plurality of transition discs and a plurality of cylinders, wherein each bolt support is of a cylindrical structure, an inner hexagonal core screw insertion hole is formed in the upper end of each bolt support, a rivet clamping block is arranged at the lower end of each bolt support, and the seat discs and the transition discs are of a ring body structure; the outer circumferential surface of each seat disc is provided with an annular boss, each annular boss is provided with a plurality of bolt through holes II along the respective circumferential direction, and the lower end surface of each seat disc is provided with a plurality of threaded blind holes I along the respective circumferential direction; the outer edge of the lower end face of each transition disc is provided with a plurality of grooves along respective circumferential direction, the groove bottom face of each groove is provided with a first bolt through hole, the lower end face of each transition disc is provided with a plurality of cylinder mounting holes along respective circumferential direction, the upper end face of the bolt inserting rotary disc is provided with two groups of mounting through holes penetrating through the thickness direction of the bolt inserting rotary disc, each group of mounting through holes are positioned on the same circumference, two circumferences where the two groups of mounting through holes are positioned are concentric with the bolt inserting rotary disc, the diameters of the two circumferences where the two groups of mounting through holes are positioned are different, the outer periphery of each mounting through hole is provided with a plurality of first threaded blind holes, each inner hexagonal core screw is vertically arranged, the threaded end is respectively and fixedly connected with the upper end of the corresponding vertically arranged bolt support in a detachable manner, and the lower end of each bolt support is respectively and fixedly connected with the, the outside of every bolt support all closely is equipped with the seat dish, every the lower extreme of seat dish all inserts closely in the installation through-hole that corresponds and all can dismantle fixed connection with the bolt insertion carousel, every fixed connection can be dismantled and all encircle the outside of suit at the cylinder piston rod that corresponds to with the cylinder body of the cylinder that corresponds to the lower extreme of transition dish, and fixed connection can be dismantled with the lower extreme of the seat dish that corresponds to the upper end of every transition dish.
Compared with the prior art, the invention has the beneficial effects that:
according to the invention, the circumferential positioning of the screwed bolt is realized through the jacking fit formed by the outer hexagonal surface of the inner hexagonal core bolt and the inner hexagonal surface of the head part of the screwed bolt; simultaneously under the effect of cylinder for screw up the bolt axial and push up the train brake disc, realize screwing up the axial positioning of bolt, guarantee then to screw up bolt in-process bolt axial and circumference while location, improved the efficiency and the quality of screwing up of bolt.
Drawings
FIG. 1 is a schematic structural view of the railway wheel bolt and nut auxiliary tightening mechanism of the present invention in use;
FIG. 2 is a bottom isometric view of the tightening mechanism shown in FIG. 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a front view of FIG. 2;
FIG. 5 is an enlarged view at E of FIG. 1;
FIG. 6 is a front view of a railway wheel;
FIG. 7 is a cross-sectional view of FIG. 6;
FIG. 8 is a top isometric view of the overall construction of a socket head cap screw;
FIG. 9 is a top view of FIG. 8;
FIG. 10 is a cross-sectional view F-F of FIG. 9;
FIG. 11 is an isometric view of the bolt support overall construction;
FIG. 12 is a front view of FIG. 11;
FIG. 13 is a sectional view taken along line G-G of FIG. 12;
FIG. 14 is a bottom isometric view of the overall construction of the transition disc;
FIG. 15 is a bottom view of FIG. 14;
FIG. 16 is a cross-sectional view B-B of FIG. 15;
FIG. 17 is a top view of the overall construction of the bolt-on turntable;
FIG. 18 is a bottom isometric view of FIG. 17;
FIG. 19 is a top view of FIG. 17;
FIG. 20 is a cross-sectional view D-D of FIG. 19;
FIG. 21 is a top isometric view of the overall construction of the seat pan;
FIG. 22 is a top view of FIG. 21;
fig. 23 is a cross-sectional view taken at P-P of fig. 22.
Detailed Description
The technical solutions in the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the invention, rather than all embodiments, and all other embodiments obtained by those skilled in the art without any creative work based on the embodiments of the present invention belong to the protection scope of the present invention.
The first embodiment is as follows: as shown in fig. 1 to 23, the invention discloses a train wheel bolt and nut auxiliary tightening mechanism, which comprises a bolt insertion rotary table 10, a plurality of inner hexagonal core screws 2, a plurality of bolt supports 3, a plurality of seat discs 5, a plurality of transition discs 7 and a plurality of cylinders 9, wherein each bolt support 3 is of a cylindrical structure, an inner hexagonal core screw insertion hole J is formed in the upper end of each bolt support 3, a rivet fixture block K (shown in fig. 11 to 13) is arranged at the lower end of each bolt support 3, and the plurality of seat discs 5 and the plurality of transition discs 7 are of annular structures; the outer circumferential surface of each seat disk 5 is provided with an annular boss L, each annular boss L is provided with a plurality of (four) bolt through holes M arranged along the axial direction along the respective circumferential direction, and the lower end surface of each seat disk 5 is provided with a plurality of (four) threaded blind holes N (shown in figures 21-23) along the respective circumferential direction; the outer edge of the lower end face of each transition disc 7 is provided with a plurality of (four) grooves along the respective circumferential direction, the groove bottom face of each groove is provided with a bolt through hole A along the axial direction, the lower end face of each transition disc 7 is provided with a plurality of (four) cylinder mounting holes Q (shown in figures 14-16) along the respective circumferential direction, the upper end face of the bolt inserting rotary disc 10 is provided with two groups of mounting through holes C along the thickness direction, each group of mounting through holes C is positioned on the same circumference, the two circumferences where the two groups of mounting through holes C are positioned are concentric with the bolt inserting rotary disc 10, the diameters of the two circumferences where the two groups of mounting through holes C are positioned are different, and the two groups of mounting through holes C are arranged to meet the use requirements of the train wheel assemblies 1 of different models; a plurality of (four) threaded blind holes H (shown in figures 17-20) are arranged at the periphery of each mounting through hole C, each hexagon socket head cap screw 2 is vertically arranged, and the threaded end of each hexagon socket head cap screw is detachably and fixedly connected with the upper end of the corresponding vertically arranged bolt support 3 in a threaded locking manner (the hexagon socket head cap screw 2 is vertically arranged in the corresponding hexagon socket head cap screw insertion hole J of the bolt support 3, an internal thread matched with the external thread of the corresponding hexagon socket head cap screw 2 is arranged in the hexagon socket head cap screw insertion hole J, the threaded end of the hexagon socket head cap screw 2 is fixedly connected with the corresponding hexagon socket head cap screw insertion hole J of the bolt support 3 in a matching and locking manner of the internal thread and the external thread), the lower end of each bolt support 3 is detachably and fixedly connected with the corresponding piston rod of the air cylinder 9 through the corresponding blind screw 4, and the outer side of each bolt support 3 is tightly sleeved with a seat disk, each lower end of the seat plate 5 is tightly inserted into the corresponding mounting through hole C and is fixedly connected with the corresponding bolt-inserting rotary plate 10 in a detachable manner (the lower end face of the annular protrusion L of each seat plate 5 is tightly attached to the upper end face of the corresponding mounting through hole C and is fixedly connected with the corresponding cylinder body of the corresponding air cylinder 9 in a screw-locking manner after being respectively inserted into the corresponding bolt through hole two M and the thread blind hole one H through a plurality of hexagon socket head bolts one 6), each lower end of the transition plate 7 is fixedly connected with the corresponding cylinder body of the air cylinder 9 in a screw-locking manner (the threaded rod at the upper end of the cylinder body of each air cylinder 9 is screwed into the corresponding cylinder mounting hole Q of the transition plate 7 in a screw-locking manner) and is sleeved outside the corresponding piston rod of the air cylinder 9 in an annular manner, and the upper end of each transition plate 7 is fixedly connected with the corresponding lower end face of the seat plate 5 in a detachable manner (the upper end face of each transition plate 7 is tightly attached to the lower end face of the corresponding seat The first hole A and the first threaded blind hole N are fixedly connected in a thread locking mode).
The second embodiment is as follows: as shown in fig. 21, 22 and 23, in the present embodiment, a first specific embodiment is further described, and the plurality of bolt through holes M on each annular boss L are uniformly distributed along the circumferential direction.
The third concrete implementation mode: as shown in fig. 23, in the present embodiment, a first specific embodiment is further described, and a plurality of threaded blind holes N on each seat disk 5 are uniformly arranged along the circumferential direction of the respective lower end surface.
The fourth concrete implementation mode: as shown in fig. 14 and 15, in this embodiment, which is a further description of the first embodiment, a plurality of bolt mounting holes a on each transition disc 7 are uniformly distributed along the outer circumference of the respective lower end surface.
The fourth concrete implementation mode: as shown in fig. 14 and 15, in this embodiment, a first specific embodiment, a second specific embodiment, a third specific embodiment, or a fourth specific embodiment is further described, and a plurality of cylinder mounting holes a on each transition disc 7 are uniformly arranged along the circumferential direction of each transition disc.
The invention provides a mechanism for eliminating the circumferential and axial freedom degrees in the bolt tightening process, which can effectively improve the bolt tightening efficiency.
The train wheel assembly 1 comprises 1-1 parts of train wheels, 1-2 parts of train brake discs, 1-3 parts of tightening bolts and 1-4 parts of tightening nuts.
In the inoperative state, the rod of the cylinder 9 is in the retracted state. During the operating condition, its piston rod promotes blind rivet 4, promotes bolt support 3 then and drives interior hexagonal core bolt 2 and stretch out, and the bolt 1-3 is screwed up in interior hexagonal core bolt 2 top this moment, and the hexagon face outside interior hexagonal core bolt 2 forms the cooperation with the hexagon face in screwing up bolt 1-3 head simultaneously, accomplishes the circumference location of screwing up bolt 1-3. Meanwhile, the tightening bolts 1-3 axially push against the train brake disc 1-2 to complete axial positioning of the tightening bolts 1-3, and the nuts 1-4 are tightened at the moment, so that tightening is more reliable and efficiency is higher.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a train wheel bolt, supplementary tightening mechanism of nut which characterized in that: the bolt-inserting rotary table comprises a bolt-inserting rotary table (10), a plurality of inner hexagonal core screws (2), a plurality of bolt supports (3), a plurality of seat discs (5), a plurality of transition discs (7) and a plurality of cylinders (9), wherein each bolt support (3) is of a cylindrical structure, an inner hexagonal core screw insertion hole (J) is formed in the upper end of each bolt support (3), a rivet clamping block (K) is arranged at the lower end of each bolt support (3), and the seat discs (5) and the transition discs (7) are of a ring body structure; the outer circumferential surface of each seat disc (5) is provided with an annular boss (L), each annular boss (L) is provided with a plurality of bolt through holes II (M) along the respective circumferential direction, and the lower end surface of each seat disc (5) is provided with a plurality of threaded blind holes I (N) along the respective circumferential direction; the outer edge of the lower end face of each transition disc (7) is provided with a plurality of grooves along respective circumferential direction, the groove bottom face of each groove is provided with a first bolt through hole (A), the lower end face of each transition disc (7) is provided with a plurality of cylinder mounting holes (Q) along respective circumferential direction, the upper end face of the bolt inserting rotary disc (10) is provided with two groups of mounting through holes (C) in the thickness direction thereof, each group of mounting through holes (C) are positioned on the same circumference, the two circumferences where the two groups of mounting through holes (C) are positioned are concentrically arranged with the bolt inserting rotary disc (10), the diameters of the two circumferences where the two groups of mounting through holes (C) are positioned are different, the outer circumference of each mounting through hole (C) is provided with a plurality of first threaded blind holes (H), each inner hexagonal core screw (2) is vertically arranged, and the threaded end is respectively detachably and fixedly connected with the upper end of the corresponding vertically arranged bolt support (3), every the lower extreme of bolt support (3) can dismantle fixed connection with the piston rod of the cylinder (9) that corresponds respectively, and the outside of every bolt support (3) all closely overlaps and is equipped with seat dish (5), every the lower extreme of seat dish (5) all closely inserts in the installation through-hole (C) that corresponds and all can dismantle fixed connection with bolt inserted rotary table (10), every fixed connection can be dismantled and all encircle the outside at the cylinder (9) piston rod that corresponds to the lower extreme of transition dish (7) all can dismantle fixed connection with the cylinder body of the cylinder (9) that corresponds and all the suit, and fixed connection can be dismantled with the lower extreme of the seat dish (5) that corresponds to the upper end of every transition dish (7).
2. The train wheel bolt and nut tightening assisting mechanism as claimed in claim 1, wherein: and a plurality of bolt through holes II (M) on each annular boss (L) are uniformly distributed along the respective circumferential direction.
3. The train wheel bolt and nut tightening assisting mechanism as claimed in claim 1, wherein: and a plurality of threaded blind holes I (N) on each seat disc (5) are uniformly distributed along the circumferential direction of the lower end surface of each seat disc.
4. The train wheel bolt and nut tightening assisting mechanism as claimed in claim 1, wherein: and a plurality of bolt mounting holes (A) in each transition disc (7) are uniformly distributed along the outer circumference of the lower end surface of each transition disc.
5. The train wheel bolt and nut auxiliary tightening mechanism according to claim 1, 2, 3 or 4, wherein: and a plurality of cylinder mounting holes (A) on each transition disc (7) are uniformly distributed along the respective circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357461.7A CN109877779B (en) | 2019-04-29 | 2019-04-29 | Auxiliary tightening mechanism for train wheel bolts and nuts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910357461.7A CN109877779B (en) | 2019-04-29 | 2019-04-29 | Auxiliary tightening mechanism for train wheel bolts and nuts |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109877779A CN109877779A (en) | 2019-06-14 |
| CN109877779B true CN109877779B (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910357461.7A Active CN109877779B (en) | 2019-04-29 | 2019-04-29 | Auxiliary tightening mechanism for train wheel bolts and nuts |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111445783B (en) * | 2020-05-09 | 2022-02-08 | 山东赛纳石油科技有限公司 | Wind-resistant warning board convenient to replace |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5595251A (en) * | 1994-08-10 | 1997-01-21 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Displaceable gear torque controlled driver |
| DE102005009879B4 (en) * | 2005-03-01 | 2008-03-06 | Schaeffler Kg | Device and method for producing a screw connection between a first component and at least one further component |
| KR101038535B1 (en) * | 2009-08-20 | 2011-06-02 | 한국철도공사 | Rail-truck swivel dismounting tool |
| JP5858806B2 (en) * | 2012-01-27 | 2016-02-10 | 新日鐵住金株式会社 | Railway wheel assembly equipment with brake disc |
| JP6585527B2 (en) * | 2016-03-15 | 2019-10-02 | ファナック株式会社 | Bolt fastening method |
| CN205380607U (en) * | 2016-03-15 | 2016-07-13 | 广州市光裕汽车空调制造有限公司 | Air condition compressor's bolt locking frock |
| CN208323263U (en) * | 2018-06-11 | 2019-01-04 | 苏州德弗朗空气控制技术有限公司 | A kind of device convenient for the quick assembled formation of fan |
| CN208681487U (en) * | 2018-08-14 | 2019-04-02 | 安徽吉斯通自动化装备有限公司 | Automatic dismounting terminal pad tightens gripping apparatus |
| CN109277974B (en) * | 2018-10-10 | 2020-09-01 | 山东建筑大学 | Quick mounting and dismounting device for screws when blades of inside diameter slicer are replaced |
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