CN204309783U - A kind of train seat rotary mechanism - Google Patents
A kind of train seat rotary mechanism Download PDFInfo
- Publication number
- CN204309783U CN204309783U CN201420796990.XU CN201420796990U CN204309783U CN 204309783 U CN204309783 U CN 204309783U CN 201420796990 U CN201420796990 U CN 201420796990U CN 204309783 U CN204309783 U CN 204309783U
- Authority
- CN
- China
- Prior art keywords
- seat
- draw runner
- underframe
- rotating shaft
- lower draw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a kind of train seat rotary mechanism, it is characterized in that: the center of seat underframe and seat rotating stand is provided with a rotating shaft, a self-aligning thrust roller bearing is provided with between rotating shaft and seat underframe, be connected by gasket assembly between self-aligning thrust roller bearing with seat underframe, between seat underframe and seat rotating stand, be provided with upper and lower draw runner.During use, the utility model adopts rotating shaft, self-aligning thrust roller bearing, snap-in upper and lower draw runner to instead of the connection mode of original rotating shaft and underframe, the rotational force of seat can be reduced like this, also reduce the shaking volume of seat and the fracture of draw runner simultaneously, decrease the number of parts of seat rotational structure simultaneously, reduce the productive costs of seat.
Description
Technical field
The utility model relates to the technical field of train seat, specifically a kind of train seat rotary mechanism.
Background technology
According to the requirement of people to comfort, always wish forward direction on the train of running at high speed and sit.During train return, being " opening " when relatively coming, in order to ensure that passenger still can sit towards working direction, seat will being rotated 180 degree.Therefore, seat be designed to can ± 180 ° of rotations, its seat ± 180 ° rotate and realize by rotating mechanism, and rotating mechanism mainly comprises underframe, pivoted frame, rotating mechanism, underframe is fixed on railway car floor, and pivoted frame realizes doing ± 180 ° of rotations on underframe by a set of rotating mechanism.
Existing rotational structure has a lot of irrational place, and it mainly contains following 3 subject matters: 1. seat rotational force is all at about 100N (standard-required≤45N); 2. the rotational wobble amount of seat is at about 15mm (standard-required≤10mm); 3. the slide rail on seat underframe, pivoted frame often ruptures, and serious wear.In prior art, underframe and pivoted frame pass through one group of tilting bearing, spherical washer, and the upper and lower slide rail contacted with each other rotates; It finds that its spherical washer does not act at all in the actual operation of seat, and it affects seat and rotates in the course of time, thus seat runs and of a specified duration causes seat rotational force excessive; Owing to employing tilting bearing, tilting bearing processing and installation process intermediate gap excessive, just result in seat shaking volume large, seat shaking volume is large, will cause seat underframe and the fracture of pivoted frame slide rail and wear and tear.
Summary of the invention
The purpose of this utility model is the train seat rotary mechanism providing a kind of improvement, and it can overcome, and rotary thrust in prior art is excessive, seat shaking volume is excessive, the some shortcomings of seat slide guide rail fracture.
To achieve these goals, the technical solution of the utility model is: a kind of train seat rotary mechanism, it mainly comprises seat underframe and is located at the seat rotating stand on seat underframe, it is characterized in that: the center of seat underframe and seat rotating stand is provided with a rotating shaft, a self-aligning thrust roller bearing is provided with between rotating shaft and seat underframe, be connected by gasket assembly between self-aligning thrust roller bearing with seat underframe, between seat underframe and seat rotating stand, be provided with upper and lower draw runner.
During use, the utility model adopts rotating shaft, self-aligning thrust roller bearing, snap-in upper and lower draw runner to instead of the connection mode of original rotating shaft and underframe, the rotational force of seat can be reduced like this, also reduce the shaking volume of seat and the fracture of draw runner simultaneously, decrease the number of parts of seat rotational structure simultaneously, reduce the productive costs of seat.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the another structural representation of the utility model one embodiment.
Fig. 3 be in Fig. 1 A-A to cutaway view.
Fig. 4 be in Fig. 2 B-B to cutaway view.
Fig. 5 is the arrangement plan of lower draw runner of the present utility model.
Fig. 6 is the arrangement plan of upper draw runner of the present utility model.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
The label of each accompanying drawing is expressed as follows: draw runner, 11 times draw runners on 1 seat underframe, 2 seat rotating stands, 3 rotating shafts, 4 holding screws, 5 adjustment pads, 6 self-aligning thrust roller bearings, 7 compensate gaskets, 8 stop washers, 9 circular nuts, 10.
A kind of train seat rotary mechanism described in the utility model, it mainly comprises seat underframe and is located at the seat rotating stand on seat underframe, its difference with the prior art is: the center of seat underframe and seat rotating stand is provided with a rotating shaft, a self-aligning thrust roller bearing is provided with between rotating shaft and seat underframe, be connected by gasket assembly between self-aligning thrust roller bearing with seat underframe, between seat underframe and seat rotating stand, be provided with upper and lower draw runner.The circle centre position of seat underframe is provided with a through hole, is provided with rotating shaft in through hole, and the through hole week of seat underframe is provided with a groove closed, and groove is square, and is provided with self-aligning thrust roller bearing in groove.
Rotating shaft is provided with first, second step, and base pivoted frame is arranged at first step place, and the contact surface of base pivoted frame and first step is provided with adjustment pad, and base pivoted frame is fixedly connected with rotating shaft by holding screw; Second step place is provided with gasket assembly, and described gasket assembly is connected in sequence by compensate gasket, stop washer and circular nut.First step is arranged at the top of rotating shaft, and second step is arranged at the bottom of rotating shaft.
Upper and lower draw runner is symmetricly set between seat underframe and seat rotating stand, and upper and lower draw runner is arranged along the outward flange in seat underframe and seat shaft contacts face, and upper and lower draw runner is 0.5-2cm apart from outer peripheral distance.The cross-sectional plane of upper and lower draw runner is all in I-shaped structure, the upper surface of seat underframe is provided with the chute corresponding with lower draw runner, the lower surface of seat rotating stand is provided with the chute corresponding with upper draw runner, the contact surface of lower draw runner and upper draw runner is plane, and the contact surface of upper draw runner and lower draw runner is the arc surface of outwardly convex.Upper draw runner is made up of the draw runner that two are set in parallel in bottom seat rotating stand, and lower draw runner is square enclosed construction, and lower draw runner is arranged along the top surface edge of seat underframe.
Be provided with a self-aligning thrust roller bearing 6 between rotating shaft and underframe, self-aligning thrust roller bearing 6 is arranged in the groove of seat underframe 1.The bottom of rotating shaft is connected by compensate gasket 7, stop washer 8, circular nut 10 with between seat underframe.Rotating shaft and seat rotating stand are threaded connection, and are provided with locking holding screw 4.Seat underframe is provided with snap-in lower draw runner 11, and pivoted frame is provided with snap-in upper draw runner 10.
In force, draw runner and seat underframe downslide bar uniform contact on seat rotating stand, assume responsibility for the axial force of seat, self-aligning thrust roller bearing bears very little axial force.If the squareness of rotating shaft and seat rotating stand body is very poor or very poor from moistening the squareness of bearing shell and underframe, or both it, self-aligning thrust roller bearing will eliminate the deflection of rotating shaft and underframe bearing seat automatically, upper and lower slide rail also can uniform contact.Due to the aligning effect of " tilting bearing ", off plumb rotating shaft can be compensated, and when seat rotating stand rotates, seat rotating stand and seat underframe will keeping parallelisms forever.When seat rotation, owing to using self-aligning thrust roller bearing, bearing is connected with seat underframe fixed orifice and rotating shaft and belongs to interference fit, and install firmly, so the shaking volume of rotating shaft is less, thus the shaking volume of seat is little; Because self-aligning thrust roller bearing is arranged on seat underframe bottom, seat is when real-world operation, and the rotational force of seat is smaller.
Owing to using holding screw to carry out locking design between rotating shaft and seat rotating stand, so the probability loosened between rotating shaft and seat rotating stand is almost nil; By self-aligning thrust roller bearing between rotating shaft and seat underframe, stop washer, circular nut connect, thus decrease the shaking volume between rotating shaft and seat underframe, so the relative shaking volume of whole chair diminishes relatively.
When seat rotates, the slip that seat underframe is relative with the upper draw runner on seat rotating stand with the lower draw runner on the main seat of the rotation between seat rotating stand chair underframe realizes moving, the design's draw runner adopts snap-in connection, fundamentally change the stressing conditions of draw runner, thus decrease the risk of draw runner fracture.
Claims (7)
1. a train seat rotary mechanism, it mainly comprises seat underframe and is located at the seat rotating stand on seat underframe, it is characterized in that: the center of seat underframe and seat rotating stand is provided with a rotating shaft, a self-aligning thrust roller bearing is provided with between rotating shaft and seat underframe, be connected by gasket assembly between self-aligning thrust roller bearing with seat underframe, between seat underframe and seat rotating stand, be provided with upper and lower draw runner.
2. a kind of train seat rotary mechanism according to claim 1, it is characterized in that: the circle centre position of seat underframe is provided with a through hole, is provided with rotating shaft in through hole, the through hole week of seat underframe is provided with a groove closed, groove is square, and is provided with self-aligning thrust roller bearing in groove.
3. a kind of train seat rotary mechanism according to claim 1, it is characterized in that: rotating shaft is provided with first, second step, base pivoted frame is arranged at first step place, and the contact surface of base pivoted frame and first step is provided with adjustment pad, and base pivoted frame is fixedly connected with rotating shaft by holding screw; Second step place is provided with gasket assembly, and described gasket assembly is connected in sequence by compensate gasket, stop washer and circular nut.
4. a kind of train seat rotary mechanism according to claim 3, it is characterized in that: first step is arranged at the top of rotating shaft, second step is arranged at the bottom of rotating shaft.
5. a kind of train seat rotary mechanism according to claim 1, it is characterized in that: upper and lower draw runner is symmetricly set between seat underframe and seat rotating stand, upper and lower draw runner is arranged along the outward flange in seat underframe and seat shaft contacts face, and upper and lower draw runner is 0.5-2cm apart from outer peripheral distance.
6. a kind of train seat rotary mechanism according to claim 1, it is characterized in that: the cross-sectional plane of upper and lower draw runner is all in I-shaped structure, the upper surface of seat underframe is provided with the chute corresponding with lower draw runner, the lower surface of seat rotating stand is provided with the chute corresponding with upper draw runner, the contact surface of lower draw runner and upper draw runner is plane, and the contact surface of upper draw runner and lower draw runner is the arc surface of outwardly convex.
7. a kind of train seat rotary mechanism according to claim 1, is characterized in that: upper draw runner is made up of the draw runner that two are set in parallel in bottom seat rotating stand, and lower draw runner is square enclosed construction, and lower draw runner is arranged along the top surface edge of seat underframe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796990.XU CN204309783U (en) | 2014-12-17 | 2014-12-17 | A kind of train seat rotary mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420796990.XU CN204309783U (en) | 2014-12-17 | 2014-12-17 | A kind of train seat rotary mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204309783U true CN204309783U (en) | 2015-05-06 |
Family
ID=53132110
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420796990.XU Expired - Fee Related CN204309783U (en) | 2014-12-17 | 2014-12-17 | A kind of train seat rotary mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204309783U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752100A (en) * | 2016-04-11 | 2016-07-13 | 成都市天龙交通设备有限公司 | Train seat rotating shaft and assembly method |
-
2014
- 2014-12-17 CN CN201420796990.XU patent/CN204309783U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105752100A (en) * | 2016-04-11 | 2016-07-13 | 成都市天龙交通设备有限公司 | Train seat rotating shaft and assembly method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20211217 |