CN111609028A - Two-side assembled low-noise torsion bar joint bearing for rail transit - Google Patents
Two-side assembled low-noise torsion bar joint bearing for rail transit Download PDFInfo
- Publication number
- CN111609028A CN111609028A CN202010583769.6A CN202010583769A CN111609028A CN 111609028 A CN111609028 A CN 111609028A CN 202010583769 A CN202010583769 A CN 202010583769A CN 111609028 A CN111609028 A CN 111609028A
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- China
- Prior art keywords
- outer ring
- torsion bar
- joint bearing
- bar joint
- bearing according
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C9/00—Bearings for crankshafts or connecting-rods; Attachment of connecting-rods
- F16C9/04—Connecting-rod bearings; Attachments thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/22—Guiding of the vehicle underframes with respect to the bogies
- B61F5/24—Means for damping or minimising the canting, skewing, pitching, or plunging movements of the underframes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C23/00—Bearings for exclusively rotary movement adjustable for aligning or positioning
- F16C23/02—Sliding-contact bearings
- F16C23/04—Sliding-contact bearings self-adjusting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/72—Sealings
- F16C33/723—Shaft end sealing means, e.g. cup-shaped caps or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J15/00—Sealings
- F16J15/50—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall
- F16J15/52—Sealings between relatively-movable members, by means of a sealing without relatively-moving surfaces, e.g. fluid-tight sealings for transmitting motion through a wall by means of sealing bellows or diaphragms
Abstract
The invention provides a two-side assembled low-noise torsion bar joint bearing for rail transit, which belongs to the technical field of rail transit, wherein a ball pin is arranged in an outer ring, the outer ring is arranged in a housing seat hole, an auxiliary check ring and a spring washer are arranged in a housing step hole, and the end face of the spring washer is tightly pressed on the end face of the outer ring, so that clearance compensation is carried out on the bearing loosened due to impact, the relative displacement between the outer ring and a housing is prevented, and the noise generated due to the abrasion between the outer ring and the housing is greatly reduced; the upper opening part of the dustproof cover is fixed on the neck part of the ball pin through a spring lock ring, and the lower opening part of the dustproof cover is fixed on the outer step surface of the shell through clearance fit with the pressing plate, so that the sealing performance is good; the pressing plate and the shell are also in clearance fit, and the pressing rib grooves are formed in the periphery of the pressing plate and used for fixing the pressing plate, so that the pressing plate can be prevented from falling off; the ball round pin neck is provided with flange step, can solve the ball round pin and take place the skew in dustcoat upper shed when swinging extreme position to lead to the problem that dustproof performance descends.
Description
Technical Field
The invention belongs to the technical field of rail transit, and particularly relates to a two-side assembled low-noise torsion bar joint bearing for rail transit.
Background
The bearing for rail transit has great influence on the safety, comfort and reliability of the operation of rail transit equipment, and the torsion bar joint bearing is generally arranged on an anti-rolling torsion bar connecting rod of a high-speed train to play a role in preventing sideslip. The existing torsion bar joint bearing generally adopts a standard rod end joint bearing, the sealing and dustproof performance of the standard rod end joint bearing is poor, and dust and sand particles easily enter the lubricating surface in the bearing, so that the lubricating performance of the bearing is reduced; the contact surface of the bearing is not specially treated, so that the wear resistance of the product is poor, the service life is short, and the actual use requirement is difficult to meet. In the actual use process, the bearing outer ring and the shell are abraded to bring noise, and in some occasions with higher requirements on noise, the traditional torsion bar joint bearing is difficult to meet the requirements; the actual use condition of the train is that the track is a track, and a lot of sand and muddy water exist in the surrounding environment of the track; therefore, how to provide a torsion bar joint bearing for rail transit, which has excellent performance such as better dustproof sealing performance, abrasion performance, service life and the like, will become a necessary trend for future development.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the two-side assembled low-noise torsion bar joint bearing for rail transit, which can greatly reduce abrasion noise, prolong the service life of the bearing and facilitate final assembly and use while improving the dustproof sealing performance of the bearing structure.
The present invention achieves the above-described object by the following technical means.
A two-side assembly type low-noise torsion bar joint bearing for rail transit comprises an outer ring provided with a ball pin, wherein the outer ring is arranged in a mounting seat hole of a shell, and an auxiliary structure is arranged in a stepped hole of the shell; the bearing also comprises a dust cover which is symmetrically arranged between the shell and the ball pin through a pressure plate and a spring locking ring.
Furthermore, the auxiliary structure is an auxiliary retainer ring, and the end face of the auxiliary retainer ring is tightly pressed on the end face of the outer ring.
Further, the auxiliary structure is an auxiliary retainer ring and a spring washer, and the end face of the spring washer is tightly pressed on the end face of the outer ring.
Further, the outer lane is symmetrical structure, and the interior sphere spraying of outer lane has emollient and is equipped with the oil groove, and it has emollient to fill in the oil groove.
Further, the shape of the oil groove is in a shape of an 8-shaped cross or a straight-line shape or an X-shaped cross.
Further, a gap between the dust cover and the shell is filled with lubricant; the upper opening of the dust cover is provided with a clamping groove, and the spring locking ring is arranged in the clamping groove to fix the upper opening at the neck of the ball pin.
Furthermore, one end of the pressing plate is in interference fit with the outer step surface of the shell, and pressing rib grooves are uniformly formed in the interference fit position and used for fixing the pressing plate.
Further, the other end of the pressing plate is in interference fit with the lower opening of the dust cover, and the lower opening is pressed on the shell.
Further, the neck of the ball pin is provided with a flange step.
Furthermore, the ball pin and the outer ring are of a two-side assembly structure, the ball pin is in clearance fit with the outer ring, and the outer ring is in interference fit with the shell.
The invention has the following beneficial effects:
compared with the prior art, the torsion bar joint bearing has the advantages that the auxiliary retainer ring and the spring washer are arranged in the stepped hole of the shell, the end face of the spring washer tightly presses the end face of the outer ring, the clearance compensation can be carried out on the bearing loosened due to impact, the relative displacement between the outer ring and the shell is prevented to a large extent, the noise generated due to the abrasion of the outer ring and the shell is greatly reduced, the abrasion resistance of the bearing is improved, and the service life of the bearing is prolonged. The oil groove that the interior sphere of bearing inner race set up can continuously provide emollient for the motion of bearing.
The upper opening part of the dust cover is fixed on the neck part of the ball pin through a spring locking ring, the lower opening part of the dust cover is fixed on the external step surface of the shell through clearance fit with the pressing plate, and a lubricant is filled in the clearance between the dust cover and the chamfer angle of the shell, so that the lubricating capability of the bearing is improved, the sealing performance is good, external dust and sand can be prevented from entering the interior of the bearing structure, and the service life of the bearing is prolonged; the pressing plate and the shell are also in clearance fit, and the pressing rib grooves are formed in the periphery of the pressing plate and used for fixing the pressing plate, so that the pressing plate can be prevented from falling off, and the stability of the whole bearing structure is improved; the ball round pin neck is provided with flange step, can solve the ball round pin and take place the skew in dustcoat upper shed when swinging extreme position to lead to the problem that dustproof performance descends.
Drawings
FIG. 1 is a schematic view of a bearing structure according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of the structure of the outer race inner spherical surface oil groove of the present invention; wherein, fig. 2(a) shows a schematic view of a cross-shaped oil groove structure of a character 8, fig. 2(b) shows a schematic view of a cross-shaped oil groove structure of a character I, and fig. 2(c) shows a schematic view of a cross-shaped oil groove structure of an character X;
FIG. 3 is a schematic view of the assembly of the dust cap and the pressure plate of the present invention;
fig. 4 is a schematic view of a bearing structure according to embodiment 2 of the present invention.
In the figure: 1-an outer ring; 2-a shell; 3-ball pin; 4-auxiliary retainer ring; 5-a dust cover; 6-pressing a plate; 7-spring lock ring; 8-a flange step; 9-oil groove; 10-a spring washer; 11-beading groove.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
Example 1
As shown in fig. 1, the torsion bar joint bearing of the present invention includes an outer race 1, a housing 2, a ball pin 3, an auxiliary retainer ring 4, a dust cover 5, a spring lock ring 7, and a pressure plate 6.
As shown in fig. 2, the inner spherical surface of the outer ring 1 with a symmetrical structure is sprayed with lubricant and provided with oil grooves 9, the oil grooves 9 are in a cross shape like a Chinese character '8', a straight shape or an X-shaped cross shape, and the oil grooves 9 are filled with lubricant and can continuously provide lubricant for the movement of the bearing. As shown in fig. 1, the ball pin 3 and the outer ring 1 are of a two-side assembly structure, the ball pin 3 is assembled in the outer ring 1 through clearance fit, so that the bearing can be ensured to rotate flexibly, the bearing clearance can be controlled by adjusting the sizes of the outer ring 1 and the ball pin 3, and the vehicle is ensured not to bump and move under severe working conditions in practical application; outer lane 1 is packed into in 2 mount pad holes of casing through interference fit, and supplementary retaining ring 4 is packed into in 2 step holes of casing, and supplementary retaining ring 4 terminal surface sticiss outer lane 1 terminal surface, reduces ball round pin 3 and rotates the in-process because of taking place relative displacement between outer lane 1 and the casing 2 and produce the wearing and tearing to reduce the noise because of wearing and tearing produce, help extension bearing's life.
As shown in fig. 3, the dust cover 5 is symmetrically arranged between the housing 2 and the ball pin 3, the dust cover 5 is made of rubber material, and the dust cover 5 is preferably S-shaped in the embodiment; a chamfer gap between the dust cover 5 and the shell 2 is filled with lubricant; a clamping groove is formed in the upper opening of the dust cover 5, the spring locking ring 7 is arranged in the clamping groove, the upper opening of the dust cover 5 is fixed to the neck of the ball pin 3, good sealing performance can be achieved, external dust and sand particles are prevented from entering, the lubricant is prevented from being lost, and the service life of the bearing is prolonged; the neck of the ball pin 3 is provided with a flange step 8, so that the upper opening of the dust cover 5 can be prevented from deviating when the ball pin 3 swings to the limit position; one end of the pressing plate 6 is in interference fit with the external step surface of the shell 2, and six uniformly distributed pressing rib grooves 11 are formed in the interference fit position through special equipment and tools, so that the pressing plate 6 is fixed, and the pressing plate 6 is prevented from loosening in the movement process; the dust cover 5 lower oral area is equipped with protruding structure, and the clamp plate 6 other end is equipped with the recess with protruding structure assorted, recess and protruding structure interference fit, will descend the oral area to press on casing 2.
Example 2
On the basis of embodiment 1, the present embodiment is an improvement of a bearing structure as follows:
as shown in fig. 4, the auxiliary retainer ring 4 and the spring washer 10 are sequentially installed in the stepped hole of the housing 2, the end face of the spring washer 10 is pressed against the end face of the outer ring 1, the bearing is loosened after being impacted for a long time, the spring washer 10 can play a role in gap compensation, abrasion between the outer ring 1 and the housing 2 is better prevented, and therefore noise can be greatly reduced.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (10)
1. A two-side assembly type low-noise torsion bar joint bearing for rail transit is characterized by comprising an outer ring (1) assembled with a ball pin (3), wherein the outer ring (1) is arranged in a mounting seat hole of a shell (2), and an auxiliary structure is arranged in a step hole of the shell (2); the bearing also comprises a dust cover (5) which is symmetrically arranged between the shell (2) and the ball pin (3) through a pressure plate (6) and a spring locking ring (7).
2. A torsion bar joint bearing according to claim 1, wherein the auxiliary structure is an auxiliary retainer ring (4), and an end face of the auxiliary retainer ring (4) is pressed against an end face of the outer ring (1).
3. A torsion bar joint bearing according to claim 1, wherein the auxiliary structures are an auxiliary retainer ring (4) and a spring washer (10), and an end face of the spring washer (10) is pressed against an end face of the outer race (1).
4. The torsion bar joint bearing according to claim 1, wherein the outer ring (1) is of a symmetrical structure, the inner spherical surface of the outer ring (1) is coated with a lubricant and provided with an oil groove (9), and the oil groove (9) is filled with the lubricant.
5. A torsion bar joint bearing according to claim 4, wherein said oil groove (9) is shaped as an "8" cross or a "straight" or an "X" cross.
6. The torsion bar joint bearing according to claim 1, wherein a clearance between the dust cover (5) and the housing (2) is filled with a lubricant; the upper opening part of the dust cover (5) is provided with a clamping groove, and the spring locking ring (7) is arranged in the clamping groove to fix the upper opening part at the neck part of the ball pin (3).
7. The torsion bar joint bearing according to claim 6, wherein one end of the pressure plate (6) is in interference fit with the external step surface of the housing (2), and the interference fit is uniformly provided with a bead pressing groove (11) for fixing the pressure plate.
8. The torsion bar joint bearing according to claim 7, wherein the other end of the presser plate (6) is interference fitted with the lower mouth portion of the dust cover (5) to press the lower mouth portion against the housing (2).
9. A torsion bar joint bearing according to claim 1, wherein the ball pin (3) neck is provided with a rib step (8).
10. The torsion bar joint bearing according to claim 1, wherein the ball pin (3) and the outer ring (1) are of a two-side assembly type structure; the ball pin (3) is in clearance fit with the outer ring (1), and the outer ring (1) is in interference fit with the shell (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010583769.6A CN111609028A (en) | 2020-06-23 | 2020-06-23 | Two-side assembled low-noise torsion bar joint bearing for rail transit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010583769.6A CN111609028A (en) | 2020-06-23 | 2020-06-23 | Two-side assembled low-noise torsion bar joint bearing for rail transit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111609028A true CN111609028A (en) | 2020-09-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010583769.6A Pending CN111609028A (en) | 2020-06-23 | 2020-06-23 | Two-side assembled low-noise torsion bar joint bearing for rail transit |
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| CN (1) | CN111609028A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294437A (en) * | 2021-05-12 | 2021-08-24 | 柳州市融安县瑞草堂农业科技有限公司 | Integrated swing bearing |
-
2020
- 2020-06-23 CN CN202010583769.6A patent/CN111609028A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113294437A (en) * | 2021-05-12 | 2021-08-24 | 柳州市融安县瑞草堂农业科技有限公司 | Integrated swing bearing |
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