CN203374709U - Brake cylinder of wagon - Google Patents
Brake cylinder of wagon Download PDFInfo
- Publication number
- CN203374709U CN203374709U CN201320431673.3U CN201320431673U CN203374709U CN 203374709 U CN203374709 U CN 203374709U CN 201320431673 U CN201320431673 U CN 201320431673U CN 203374709 U CN203374709 U CN 203374709U
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- China
- Prior art keywords
- piston
- spring
- brake cylinder
- cylinder body
- rail wagon
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Abstract
The utility model discloses a brake cylinder of a wagon. The brake cylinder of the wagon comprises a cylinder body, a piston assembly and a piston rod, wherein the piston assembly and the piston rod are arranged in the cylinder body, a driving lubricating mechanism which is used for enabling the piston assembly to rotate in the process of release of a brake is arranged in the cylinder body, and the driving lubricating mechanism comprises a plurality of spring pieces arranged at the bottom of the piston assembly, a gear ring base arranged at the bottom inside the cylinder body, a spring base arranged at the front end inside the cylinder body, and a release spring, and the piston rod is sleeved with the release spring. The spring pieces and the gear ring base are matched to form a ratchet wheel structure, one end of the release spring abuts against the inner side end face of the piston assembly, the other end of the release spring abuts against the end face of the spring base, and the release spring is in the compression state all the time. According to the brake cylinder, due to the fact that when the piston assembly conducts the release of brake, the piston assembly can rotate under the action of the driving lubricating mechanism, grease which naturally flows to the lower portion of the brake cylinder can be driven to the upper portion of the brake cylinder through the rotation of a piston, the circulation of the grease of the brake cylinder in the brake cylinder can be achieved, and the effect of conducting driving lubricating is achieved.
Description
Technical field
The utility model relates to a kind of initiatively rail wagon brake cylinder of lubricating function that has.
Background technique
Spinning seal type brake cylinder is the critical component of rail wagon brake system, and the master cylinder fault is to threaten one of railway freight-car traffic safety factor.Summer in 2011 and winter, the Ministry of Railways organizes rail wagon brake system tackling key problem group to carry out the site technology investigation between the part rolling stock section serviceable wagon in south China and the north.The tackling key problem group checks 27600 lorries summer altogether, and the braking system fault has 198, and wherein, master cylinder is stifled loses 107, and master cylinder is sewed 38, and the master cylinder release spring fractures 3, amounts to 148.Master cylinder is sewed and is accounted for 19.2% of fault vehicle, accounts for 0.14% of general inspection vehicle.The tackling key problem unit in winter checks approximately 7000 lorries altogether, does not find the situation that master cylinder is sewed.Find out thus, it is one of braking system inertial defect that master cylinder is sewed.
Sew master cylinder and decompose through scene, basically all find the thinning blackout of master cylinder lubricating grease, because gravity and Vehicular vibration flow pendant naturally to the master cylinder bottom, top does not almost have lubricating grease, the part inboard wall of cylinder block has the scuffing vestige, and in addition, existing ring structure is unfavorable for the lubricating grease preservation, easily break away from the piston mounting groove after the oil suction swell, piston and cylinder body seal band are inhomogeneous, cause the cylinder body eccentric wear, and dustproof effect is bad, sand and dust enter in cylinder, affect PERFORMANCE OF GREASES.
The model utility content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, provide a kind of nature stream pendant that can allow take master cylinder top to the grease of master cylinder bottom to by the rotation of piston self, realize that grease circulates to reach the initiatively rail wagon brake cylinder of lubrication in master cylinder.
The technical solution of the utility model is achieved in that a kind of rail wagon brake cylinder, the piston that comprises cylinder body and be arranged in cylinder body forms and piston rod, it is characterized in that: be provided with the active lubricating structure rotated when the release of brake for piston assembly in described cylinder body, described active lubricating structure comprises some spring sheets that piston forms bottom that are arranged on, be arranged on the gear ring base of cylinder body inner bottom part, be arranged on the spring seat of cylinder body Inner Front End and be enclosed within the release spring on piston rod, described spring sheet coordinates the formation ratchet structure with gear ring base, described release spring one end is resisted against piston and forms inner side end, its the other end is resisted against the spring seat end face, described release spring is all the time in compressive state.
Rail wagon brake cylinder described in the utility model, its described spring sheet one end forms bottom with piston and is connected, and its other end stretches out along the piston rod axial direction, and when master cylinder is alleviated, the external part of described spring sheet is placed in the teeth groove of gear ring base.
Rail wagon brake cylinder described in the utility model, the height H that its described spring sheet stretches out is 20mm～90mm, radius bend R is 80mm～200mm, expanded angle is that alpha+beta is less than 150 °, the number of teeth B of described gear ring base is 90～136 teeth, and tooth depth C is 2mm～3mm, and facewidth E is 3mm～7mm, the pressure angle δ of its rotation direction one side is 70 °～100 °, and the pressure angle γ of opposite side is-20 °～10 °.
Rail wagon brake cylinder described in the utility model, its described spring sheet is evenly distributed on piston and forms bottom.
Rail wagon brake cylinder described in the utility model, it is being provided with thrust-bearing between described release spring and spring seat or between release spring and piston composition.
Rail wagon brake cylinder described in the utility model, moving-coil and the Jing Quan of its described thrust-bearing are structure as a whole.
Rail wagon brake cylinder described in the utility model, its on piston forms, piston forms and inboard wall of cylinder block between be provided with the seal ring with oil storage function, be provided with end face and the inboard wall of cylinder block close contact of annular oil storage tank on the described seal ring with oil storage function.
Rail wagon brake cylinder described in the utility model, its described seal ring with oil storage function is fixed on piston by retainer and forms.
Rail wagon brake cylinder described in the utility model, it is provided with dust ring between described piston rod and spring seat, described dust ring is placed in the grooving of spring seat, and the internal diameter of described dust ring is slightly less than the diameter of piston rod, on described dust ring, along an one end face, is provided with opening.
Rail wagon brake cylinder described in the utility model, its on described piston forms, piston forms and inboard wall of cylinder block between be provided with guidance tape.
Owing to having adopted technique scheme, the beneficial effects of the utility model are:
1, the piston in the utility model forms when release of brake, can under the effect of active lubricating structure, produce rotation, thereby can allow nature stream pendant take master cylinder top to the grease of master cylinder bottom to by the rotation of piston self, realize that the master cylinder grease circulates in master cylinder, to reach initiatively lubricated effect.
2, by the seal ring of mounting strap oil storage function on the master cylinder piston, can effectively lubricating grease be stored in oil groove, when the master cylinder piston movement, can give in time inboard wall of cylinder block supplemental lubrication fat.
3, install retainer additional by the seal ring inboard with oil storage function, can play the effect of further fixed seal ring, after guaranteeing seal ring oil suction expansion, size and dimension does not have too large variation, make to be fixed on correct mounting point with the seal ring of oil storage function, prevent seal ring swell, breakage with oil storage function.
4, by the master cylinder spring seat, installing dust ring additional, after its assembling, be close on piston rod, can prevent to a certain extent that extraneous sand and dust from entering master cylinder inside from the gap between piston rod and protecgulum filter dirt cover, affects PERFORMANCE OF GREASES.
5, by piston, forming and install guidance tape additional, when playing the support piston anabolic action, can guarantee that piston forms and the casing wall concentric motion, improves the operating conditions of seal ring, avoid piston to form and the friction of inboard wall of cylinder block metal surface, significantly reduce resistance to motion.
The accompanying drawing explanation
Fig. 1 is structural section figure of the present utility model.
Fig. 2 is A section enlarged view in Fig. 1.
Fig. 3 and Fig. 4 are the be hit by a bullet structural representations of reed of the utility model.
Fig. 5 is the structural representation of gear ring base in the utility model.
Fig. 6 is the sectional view of teeth groove in gear ring base.
Mark in figure: 1 is cylinder body, and 2 for piston forms, and 3 is piston rod, and 4 is spring sheet, and 5 is gear ring base, and 6 is spring seat, and 7 is release spring, and 8 is thrust-bearing, and 9 is the seal ring with oil storage function, and 10 is retainer, and 11 is dust ring, and 12 is guidance tape.
Embodiment
Below in conjunction with accompanying drawing, this utility model is described in detail.
In order to make the purpose of this utility model, technological scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain this utility model, and be not used in restriction the utility model.
As illustrated in fig. 1 and 2, a kind of rail wagon brake cylinder, comprise cylinder body 1 and be arranged on piston composition 2 and the piston rod 3 in cylinder body 1, the active lubricating structure rotated while being provided with for piston assembly in release of brake in described cylinder body 1, described active lubricating structure comprises some spring sheets 4 that piston forms 2 bottoms that evenly are arranged on, be arranged on the gear ring base 5 of cylinder body 1 inner bottom part, be arranged on the spring seat 6 of cylinder body 1 Inner Front End and be enclosed within the release spring 7 on piston rod 3, described spring sheet 4 one ends form 2 bottoms with piston and are connected, its the other end stretches out along piston rod 3 axial directions, when master cylinder is alleviated, the external part of described spring sheet 4 is placed in the teeth groove of gear ring base 5, described spring sheet 4 coordinates the formation ratchet structure with gear ring base 5, described release spring 7 one ends are resisted against piston and form 2 inner side ends, its the other end is resisted against spring seat 6 end faces, described release spring 7 is all the time in compressive state, be provided with thrust-bearing 8 between described release spring 7 and spring seat 6 or between release spring 7 and piston composition 2, moving-coil and the Jing Quan of described thrust-bearing 8 are structure as a whole, can not break away from.
As shown in Fig. 3-6, the height H that described spring sheet 4 stretches out is 20mm～90mm, radius bend R is 80mm～200mm, expanded angle is that alpha+beta is less than 150 °, the number of teeth B of described gear ring base 5 is 90～136 teeth, and tooth depth C is 2mm～3mm, and facewidth E is 3mm～7mm, the pressure angle δ of its rotation direction one side is 70 °～100 °, and the pressure angle γ of opposite side is-20 °～10 °.
In master cylinder alleviation process, after spring sheet touches gear ring base, spring sheet is driven plain gradually, because spring sheet one end is blocked by gear ring base, forces piston to form and rotates, when braking next time, spring sheet progressively restores, and slowly from the helical teeth that blocks it, moves to adjacent helical teeth, then to another adjacent helical teeth, until spring sheet leaves gear ring base, leave the position of gear ring base when when alleviate next time, the position of spring sheet contact is exactly this braking.Therefore, when master cylinder is alleviated, the ratchet structure that gear ring base and spring sheet form makes piston form rotation, each piston of alleviating forms rotation a bit, by about 40～150 releases of brake, the master cylinder piston forms relative cylinder body and rotates a circle, like this, can allow nature stream pendant take master cylinder top to the grease of master cylinder bottom to by the rotation of piston composition itself, realize the circulation of master cylinder grease in master cylinder.
As shown in Figure 2, at piston, form on 2, piston form 2 and cylinder body 1 inwall between be provided with the seal ring 9 with oil storage function, be provided with end face and the cylinder body 1 inwall close contact of annular oil storage tank on the described seal ring with oil storage function 9, seal ring by mounting strap oil storage function on the master cylinder piston, can effectively lubricating grease be stored in oil groove, can give in time inboard wall of cylinder block supplemental lubrication fat when the master cylinder piston movement, the concrete structure of the described seal ring with oil storage function is the disclosed technological scheme of Chinese model utility ZL201220677565.X; The described seal ring with oil storage function 9 is fixed on piston by retainer 10 and forms on 2, described steel ring is that high-quality engineering plastics is made, retainer the effect that can play further fixed seal ring is set, after guaranteeing seal ring oil suction expansion, size and dimension does not have too large variation, make to be fixed on correct mounting point with the seal ring of oil storage function, prevent seal ring swell, breakage with oil storage function; At described piston, form on 2, piston form 2 and cylinder body 1 inwall between be provided with guidance tape 12, described guidance tape adopts the PTFE composite material to make, thickness is 4～6mm, width is 6～10mm, have that very high load capacity, selflubricating, friction are little, low, the wide temperature of wearing and tearing (100～+ 200 ° of C), and easy for installation, guidance tape is when playing the support piston anabolic action, can guarantee that piston forms and the casing wall concentric motion, improve the operating conditions of seal ring, avoid piston to form and the friction of inboard wall of cylinder block metal surface, significantly reduce resistance to motion.
Wherein, be provided with dust ring 11 between described piston rod 3 and spring seat 6, described dust ring is the annulus that polyoxymethylene is made, described dust ring 11 is placed in the grooving of spring seat 6, the internal diameter of described dust ring 11 is slightly less than the diameter of piston rod 3, be provided with opening along an one end face on described dust ring 11, after the dust ring assembling, be close on piston rod, can prevent to a certain extent that extraneous sand and dust from entering master cylinder inside from the gap between piston rod and protecgulum filter dirt cover, affects PERFORMANCE OF GREASES.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (10)
1. a rail wagon brake cylinder, the piston that comprises cylinder body (1) and be arranged in cylinder body (1) forms (2) and piston rod (3), it is characterized in that: the active lubricating structure rotated while being provided with for piston assembly in release of brake in described cylinder body (1), described active lubricating structure comprises some spring sheets (4) that piston forms (2) bottom that are arranged on, be arranged on the gear ring base (5) of cylinder body (1) inner bottom part, be arranged on the spring seat (6) of cylinder body (1) Inner Front End and be enclosed within the release spring (7) on piston rod (3), described spring sheet (4) coordinates the formation ratchet structure with gear ring base (5), described release spring (7) one ends are resisted against piston and form (2) inner side end, its the other end is resisted against spring seat (6) end face, described release spring (7) is all the time in compressive state.
2. rail wagon brake cylinder according to claim 1, it is characterized in that: described spring sheet (4) one ends form (2) bottom with piston and are connected, its the other end stretches out along piston rod (3) axial direction, when master cylinder is alleviated, the external part of described spring sheet (4) is placed in the teeth groove of gear ring base (5).
3. rail wagon brake cylinder according to claim 2, it is characterized in that: the height H that described spring sheet (4) stretches out is 20mm～90mm, radius bend R is 80mm～200mm, expanded angle is that alpha+beta is less than 150 °, the number of teeth B of described gear ring base (5) is 90～136 teeth, and tooth depth C is 2mm～3mm, and facewidth E is 3mm～7mm, the pressure angle δ of its rotation direction one side is 70 °～100 °, and the pressure angle γ of opposite side is-20 °～10 °.
4. rail wagon brake cylinder according to claim 2 is characterized in that: described spring sheet (4) is evenly distributed on piston and forms (2) bottom.
5. rail wagon brake cylinder according to claim 1, is characterized in that: between described release spring (7) and spring seat (6) or between release spring (7) and piston composition (2), be provided with thrust-bearing (8).
6. rail wagon brake cylinder according to claim 5, it is characterized in that: moving-coil and the Jing Quan of described thrust-bearing (8) are structure as a whole.
7. according to the described rail wagon brake cylinder of any one in claim 1 to 6, it is characterized in that: form at piston that (2) are upper, piston forms between (2) and cylinder body (1) inwall and be provided with the seal ring (9) with oil storage function, is provided with end face and cylinder body (1) the inwall close contact of annular oil storage tank on the described seal ring with oil storage function (9).
8. rail wagon brake cylinder according to claim 7 is characterized in that: the described seal ring with oil storage function (9) is fixed on piston by retainer (10) and forms on (2).
9. rail wagon brake cylinder according to claim 7, it is characterized in that: between described piston rod (3) and spring seat (6), be provided with dust ring (11), described dust ring (11) is placed in the grooving of spring seat (6), the internal diameter of described dust ring (11) is slightly less than the diameter of piston rod (3), at described dust ring (11), above along an one end face, is provided with opening.
10. rail wagon brake cylinder according to claim 7 is characterized in that: form at described piston that (2) are upper, piston forms between (2) and cylinder body (1) inwall and be provided with guidance tape (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320431673.3U CN203374709U (en) | 2013-07-19 | 2013-07-19 | Brake cylinder of wagon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320431673.3U CN203374709U (en) | 2013-07-19 | 2013-07-19 | Brake cylinder of wagon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203374709U true CN203374709U (en) | 2014-01-01 |
Family
ID=49837238
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320431673.3U Expired - Lifetime CN203374709U (en) | 2013-07-19 | 2013-07-19 | Brake cylinder of wagon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203374709U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352942A (en) * | 2013-07-19 | 2013-10-16 | 四川制动科技股份有限公司 | Railway wagon brake cylinder |
| CN107972692A (en) * | 2017-11-21 | 2018-05-01 | 四川坤元金属材料有限公司 | One kind can brake mine car |
| EP3254927A4 (en) * | 2016-04-13 | 2018-06-20 | Meishan Crrc Brake Science & Tecnology Co., Ltd | Dustproof cover for brake cylinder and waterproof brake cylinder using dustproof cover |
| CN110259854A (en) * | 2019-05-10 | 2019-09-20 | 中车成都机车车辆有限公司 | A kind of spinning checking cylinder with three-layer sealed device |
-
2013
- 2013-07-19 CN CN201320431673.3U patent/CN203374709U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103352942A (en) * | 2013-07-19 | 2013-10-16 | 四川制动科技股份有限公司 | Railway wagon brake cylinder |
| EP3254927A4 (en) * | 2016-04-13 | 2018-06-20 | Meishan Crrc Brake Science & Tecnology Co., Ltd | Dustproof cover for brake cylinder and waterproof brake cylinder using dustproof cover |
| CN107972692A (en) * | 2017-11-21 | 2018-05-01 | 四川坤元金属材料有限公司 | One kind can brake mine car |
| CN110259854A (en) * | 2019-05-10 | 2019-09-20 | 中车成都机车车辆有限公司 | A kind of spinning checking cylinder with three-layer sealed device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee after: MEISHAN CRRC BRAKE SCIENCE & TECHNOLOGY Co.,Ltd. Address before: Three road 620010 Meishan province Sichuan City Dongpo District of Meishan science and Technology Industrial Park No. 68 Patentee before: SICHUAN BRAKE SCIENCE AND TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140101 |