CN110155115B - Manual brake parking cylinder release mechanism and railway vehicle brake parking cylinder device - Google Patents
Manual brake parking cylinder release mechanism and railway vehicle brake parking cylinder device Download PDFInfo
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- CN110155115B CN110155115B CN201910461899.XA CN201910461899A CN110155115B CN 110155115 B CN110155115 B CN 110155115B CN 201910461899 A CN201910461899 A CN 201910461899A CN 110155115 B CN110155115 B CN 110155115B
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- taper shank
- parking cylinder
- mounting seat
- brake
- screw
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61H—BRAKES OR OTHER RETARDING DEVICES SPECIALLY ADAPTED FOR RAIL VEHICLES; ARRANGEMENT OR DISPOSITION THEREOF IN RAIL VEHICLES
- B61H13/00—Actuating rail vehicle brakes
- B61H13/02—Hand or other personal actuation
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention provides a manual release mechanism of a brake parking cylinder and a railway vehicle brake parking cylinder device, and belongs to the technical field of rail transit vehicle braking. Under the parking braking state, through pulling the taper shank, alleviate the screw, transmit power to the external part component on, make the locking mechanism of external part component alleviate to can keep alleviating the state.
Description
Technical Field
The invention relates to the technical field of rail transit vehicle braking, in particular to a manual release mechanism of a brake parking cylinder and a railway vehicle brake parking cylinder device.
Background
A common arrangement in a railway vehicle brake system is a set of brake cylinders that perform service braking (service braking, emergency braking), and a set of hand brakes that are typically used when parked: when the vehicle runs, if the vehicle needs to stay on a slope for a long time, in order to prevent the brake cylinder from leaking, naturally relieving and losing the braking function, a hand brake needs to be screwed; parking on a ramp to prevent sliding accidents, and tightening a hand brake; the hand brake is prevented from being screwed down when the vehicle is blown away by strong wind.
The prior hand brake for realizing parking brake of domestic vehicles has the following defects: the magnitude of the braking force depends on the magnitude of the force of an operator, so that the dependence on the operator is high, and if the force of the operator is small, complete braking cannot be realized; and the operator forgets to relieve the hand brake before the vehicle runs, so that the tread and the wheel are not separated, and the tread is scratched and the like.
Disclosure of Invention
The invention aims to provide a manual brake parking cylinder release mechanism and a railway vehicle brake parking cylinder device, which can realize the automation of parking brake.
The embodiment of the invention is realized by the following steps:
the manual release mechanism comprises an installation seat, a taper shank and a release screw, wherein the taper shank and the release screw are arranged in the installation seat, one end of the taper shank extends out of the installation seat, the taper shank can move in the installation seat along the axial direction of the taper shank, a plurality of pin holes penetrating through the peripheral wall of the installation seat are formed in the peripheral wall of the installation seat in the direction perpendicular to the axis of the taper shank, a clamping pin is arranged in each pin hole, one end of each clamping pin is in a state of abutting against the conical surface of the taper shank, a clamping pin spring is sleeved on each clamping pin, and the release screw is used for connecting an external connecting part.
Optionally, a spherical washer is arranged between the taper shank and the relief screw, an end of the taper shank is attached to an end of the spherical washer, a screw head of the relief screw is clamped in the spherical washer, and a screw rod of the relief screw extends in a direction away from the spherical washer.
Optionally, a return spring is sleeved on one end of the taper shank close to the spherical washer.
Optionally, the other end of the taper shank is provided with a pull ring, and the pull ring is located at one end of the taper shank extending out of the mounting seat.
Optionally, a hole retaining ring is provided between the spherical washer and the mount at the end near the screw head of the relief screw.
Optionally, the pull ring is connected with the taper shank through a pull ring pin, one end of the pull ring pin is arranged in the taper shank, a pull ring hole is arranged on the circumferential wall of the pull ring pin, and the pull ring is arranged in the pull ring hole in a penetrating manner.
Optionally, a plurality of through holes are further formed in the peripheral wall of the mounting seat in the direction perpendicular to the axis of the taper shank, the through holes penetrate through the peripheral wall of the mounting seat, the through holes and the pin holes are symmetrically arranged with the axis of the taper shank as a center line, the axis of the through holes and the axis of the pin holes are collinear, and sealing plugs are arranged in the through holes.
Optionally, a sealing ring is arranged between the taper shank and the mounting seat, and the sealing ring is located near one end of the taper shank extending out of the mounting seat.
The brake parking cylinder is provided with a wedge, and the brake parking cylinder is connected with a release screw of the brake parking cylinder manual release mechanism through the wedge.
The embodiment of the invention has the beneficial effects that:
the manual release mechanism for the brake parking cylinder comprises an installation seat, a taper shank and a release screw, wherein the taper shank and the release screw are arranged in the installation seat, one end of the taper shank extends out of the installation seat, the taper shank can move in the installation seat along the axial direction of the taper shank, a plurality of pin holes penetrating through the peripheral wall of the installation seat are formed in the peripheral wall of the installation seat in the direction perpendicular to the axis of the taper shank, a clamping pin is arranged in each pin hole, one end of each clamping pin is in a state of abutting against the conical surface of the taper shank, a clamping pin spring is sleeved on each clamping pin, and the release screw is used for connecting an external. According to the manual release mechanism for the brake parking cylinder provided by the embodiment of the invention, the release screw is connected with the external connecting part, the external connecting part is a part on the brake parking cylinder of the railway vehicle, and the release screw is used for transmitting force to the external connecting part (the brake parking cylinder) by pulling the taper shank in a parking brake state, so that the locking mechanism of the external connecting part (the brake parking cylinder) is released, and the release state can be kept.
The brake parking cylinder device of the railway vehicle comprises a brake parking cylinder and the manual release mechanism of the brake parking cylinder, wherein the brake parking cylinder is provided with a wedge, and the brake parking cylinder is connected with a release screw of the manual release mechanism of the brake parking cylinder through the wedge. According to the railway vehicle brake parking cylinder device provided by the embodiment of the invention, the locking mechanism of the brake parking cylinder is released through the manual release mechanism of the brake parking cylinder, and the release state can be kept.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic structural diagram of a manual release mechanism for a brake parking cylinder according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a bayonet extending out according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a latch of an embodiment of the present invention being locked;
FIG. 4 is a schematic structural diagram of a latch according to an embodiment of the present invention;
FIG. 5 is a schematic structural view of a brake parking cylinder assembly for a railway vehicle according to an embodiment of the present invention;
FIG. 6 is an enlarged view taken at A in FIG. 5;
FIG. 7 is a second schematic structural view of a brake parking cylinder assembly for a railway vehicle according to an embodiment of the present invention;
fig. 8 is an enlarged view at B in fig. 7.
Icon: 10-a brake parking cylinder manual release mechanism; 11-relief screws; 12-spherical washer; 13-a retainer ring for the bore; 14-taper shank; 141-a pull ring; 142-a tab pin; 15-a return spring; 16-a sealing plug; 17-bayonet lock; 171-a bayonet spring; 18-a mounting seat; 19-a sealing ring; 42-a parking lock loop; 44-energy storage spring; 46-a stop collar; 50-a piston; 53-a reduction sleeve; 54-a wedge; 55-a lock head; 56-train pipe air inlet channel; s-clearance; s1-distance.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example one
Referring to fig. 1, the present embodiment provides a manual release mechanism 10 for a brake parking cylinder, which includes an installation seat 18, a taper shank 14 disposed in the installation seat 18, and a release screw 11, wherein one end of the taper shank 14 extends out of the installation seat 18, the taper shank 14 is movable in the installation seat 18 along an axial direction of the taper shank 14, a plurality of pin holes penetrating through a peripheral wall of the installation seat 18 are disposed on a peripheral wall of the installation seat 18 in a direction perpendicular to an axis of the taper shank 14, a locking pin 17 is disposed in the pin hole, one end of the locking pin 17 is in a state of abutting against a conical surface of the taper shank 14, a locking pin spring 171 is sleeved on the locking pin 17, and the release screw 11 is used for connecting an external connection component.
As shown in fig. 4, the latch 17 includes a connecting portion 17b and an extending portion 17a connected to each other, the bottom end of the connecting portion 17b is a curved surface 17c matching with the tapered surface of the taper shank 14, and the latch spring 171 is fitted over the extending portion 17 a.
A sealing ring 19 is arranged between the taper shank 14 and the mounting seat 18, and the sealing ring 19 is positioned near the end of the taper shank 14 extending out of the mounting seat 18 to seal the taper shank 14 and the mounting seat 18.
A spherical washer 12 is arranged between the taper shank 14 and the buffering screw 11 and used for transmitting transmission force between the taper shank 14 and the buffering screw 11, the end portion of the taper shank 14 is attached to the end portion of the spherical washer 12, a screw head of the buffering screw 11 is clamped in the spherical washer 12, and a screw rod of the buffering screw 11 extends in the direction far away from the spherical washer 12.
Between the spherical washer 12 and the mounting seat 18, at the end near the screw head of the relief screw 11, a hole retainer 13 is provided for preventing the spherical washer 12 from being withdrawn.
A return spring 15 is sleeved on one end of the taper shank 14 close to the spherical washer 12. The other end of the taper shank 14 is provided with a pull ring 141, and the pull ring 141 is located at the end of the taper shank 14 extending out of the mounting seat 18. The pull ring 141 is connected with the taper shank 14 through a pull ring pin 142, one end of the pull ring pin 142 is arranged in the taper shank 14, a pull ring hole is arranged on the peripheral wall of the pull ring pin 142, and the pull ring 141 penetrates through the pull ring hole. The pull ring 141 facilitates the grip application by the operator.
A plurality of through holes are further formed in the peripheral wall of the mounting seat 18 in the direction perpendicular to the axis of the taper shank 14, the through holes penetrate through the peripheral wall of the mounting seat 18, the through holes and the pin holes are symmetrically arranged with the axis of the taper shank 14 serving as a central line, the axes of the through holes and the axis of the pin hole are collinear, the through holes and the pin holes are arranged on the peripheral wall of the mounting seat 18 at intervals, and sealing plugs 16 are arranged in the through holes. The sealing plug 16 may be a rubber plug for plugging the through hole of the mounting seat 18 to seal against dust.
As shown in fig. 2 and 3, the manual release mechanism 10 for a brake parking cylinder according to an embodiment of the present invention is connected to an external component by a release screw 11, the external component is a component on the brake parking cylinder of a railway vehicle, and in a parking brake state, by pulling a pull ring 141, a locking mechanism of the external component (brake parking cylinder) is released and can maintain the released state by a pull ring pin 142, a taper shank 14, a return spring 15, a mounting seat 18, a spherical washer 12, and the release screw 11, and finally transmitting a force to the external component (brake parking cylinder).
Example two
Referring to fig. 5, the present embodiment provides a railway vehicle braking parking cylinder device, which includes a braking parking cylinder and the manual release mechanism 10 for braking parking cylinder, wherein a mounting seat for braking parking cylinder is disposed at an end of the braking parking cylinder, the mounting seat for braking parking cylinder is connected to a limiting sleeve 46, a piston 50 is disposed in the limiting sleeve 46, the manual release mechanism 10 for braking parking cylinder is disposed in the limiting sleeve 46 and located at an end surface of the piston 50, a release screw 11 of the manual release mechanism 10 for braking parking cylinder is disposed in a piston rod of the piston 50, a wedge 54 is further disposed on the mounting seat for braking parking cylinder, and an end of a screw rod of the release screw 11 is connected to the wedge 54.
The manual release mechanism 10 of the brake parking cylinder is installed in the limiting sleeve 46, the release screw 11 is connected with the wedge 54, the pull ring 141 is pulled in the parking brake state, the release screw 11 is released through the pull ring pin 142, the taper shank 14, the return spring 15, the installation seat 18, the spherical washer 12, and finally the release screw is transmitted to the wedge 54, the wedge 54 moves to the right under the action of the pull ring 141, the lock head 55 moves outwards in the radial direction under the action of the parking lock ring 42, and the parking lock ring 42 is restored to the initial state, so that the locking of a piston rod of the brake parking cylinder is released, and the purpose of manual release is achieved.
The park mechanism manual release (manual unlock) state is as follows:
the inclined wedge 54 is pulled to move right through the manual release mechanism 10 of the brake parking cylinder, the lock head 55 moves downwards in the radial direction under the action of the restoring force of the parking lock ring 42, the parking lock ring 42 resets and leaves the annular groove on the piston rod of the brake parking cylinder, and the unlocking of the locking mechanism is completed.
As shown in fig. 5 and 7, during manual release, the wedge 54 moves to the right under the action of the pull ring 141, and the wedge 54 transmits the force from the pull ring 141 to the reset sleeve 53, then to the parking piston 50, and finally to the energy storage spring 44, compressing the energy storage spring 44. At the same time, the taper shank 14 moves to the right under the action of the pull ring 141, and the bayonet 17 matched with the conical surface on the taper shank 14 has a tendency to move radially outwards, but because the radial limitation of the stop collar 46 cannot move outwards, when the bayonet 17 moves to the right along with the parking cylinder manual release mechanism 10 to a position where the bayonet is not limited by the stop collar 46, the bayonet 17 extends radially (fig. 2 and 5), and the bayonet 17 has a clearance S (shown in fig. 6) from the end surface of the stop collar 46. When the pull ring 141 is released, the bayonet lock 17 is clamped by the stop collar 46 and can not retract, and is locked on the step of the stop collar 46 under the action of the energy storage spring 44 (fig. 7), at the moment, the right end face of the piston 50 has a certain distance S1 (shown in fig. 8) with the stop collar 46, the distance S1 is the gap S, namely the distance S1 is equal to the gap S, when the train pipe air inlet channel 56 is inflated, the parking piston 50 moves to the right under the action of pressure air to overcome the action of the energy storage spring 44, the manual brake parking cylinder release mechanism 10 is pushed to move to the right, the bayonet lock 17 leaves the stop collar 46, the bayonet lock 17 is separated from the stop collar 46, and the bayonet lock 17 retracts into the mounting seat 18 under the action of the bayonet lock 171 to prepare for the.
The embodiment provides a railway vehicle braking parking cylinder device, which can realize the automation of parking braking, and controls the opening and closing of the parking braking by using the pressure change of a train pipe air inlet channel 56: after the vehicle is braked, when the pressure of the train pipe is reduced to a certain pressure, the piston rod of the piston 50 pushes the wedge 54, further pushes the lock 55 to move radially (upwards), the parking lock ring 42 is folded, and the piston rod of the brake parking cylinder is fixed, the piston rod cannot move back, even if the pressure air in the brake parking cylinder of the railway vehicle is completely leaked, the piston rod can be kept at the braking position to realize parking braking, and the braking force depends on the acting force when the braking action occurs.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A brake park cylinder manual mitigation mechanism, comprising: the mounting seat, the taper shank and the relieving screw are arranged in the mounting seat, one end of the taper shank extends out of the mounting seat, the taper shank can move in the mounting seat along the axial direction of the taper shank, a plurality of pin holes penetrating through the peripheral wall of the mounting seat are formed in the peripheral wall of the mounting seat in the direction perpendicular to the axis of the taper shank, a bayonet lock is arranged in each pin hole, one end of the bayonet lock is in a state of abutting against the conical surface of the taper shank, a bayonet spring is sleeved on the bayonet lock, the relieving screw is used for connecting a braking parking cylinder, a braking parking cylinder mounting seat is arranged at the end part of the braking parking cylinder, a limiting sleeve and a piston are arranged in the braking parking cylinder mounting seat, a manual relieving mechanism of the braking parking cylinder is arranged in the limiting sleeve through the mounting seat and located on the end surface of the piston, and a step hole for extending out of the bayonet lock is formed in the limiting sleeve, an energy storage spring is arranged between the limiting sleeve and the brake parking cylinder mounting seat, and the relieving screw is arranged in the piston rod of the piston.
2. The manual release mechanism for the brake parking cylinder of claim 1, wherein a spherical washer is disposed between the taper shank and the release screw, an end of the taper shank is engaged with an end of the spherical washer, a screw head of the release screw is engaged with the spherical washer, and a screw shaft of the release screw extends in a direction away from the spherical washer.
3. The manual brake park cylinder release mechanism of claim 2 wherein a return spring is sleeved on the taper shank near one end of the spherical washer.
4. The manual brake park cylinder release mechanism of claim 3, wherein the other end of the taper shank is provided with a pull ring at the end of the taper shank extending beyond the mounting seat.
5. The manual brake park cylinder release mechanism of claim 2 wherein a circlip is provided between the spherical washer and the mount at the end adjacent the screw head of the release screw.
6. The manual release mechanism for the brake parking cylinder of claim 4, wherein the pull ring is connected with the taper shank through a pull ring pin, one end of the pull ring pin is arranged in the taper shank, a pull ring hole is arranged on the peripheral wall of the pull ring pin, and the pull ring is arranged in the pull ring hole in a penetrating manner.
7. The manual release mechanism for the brake parking cylinder of claim 1, wherein a plurality of through holes are further formed in the peripheral wall of the mounting seat in a direction perpendicular to the axis of the taper shank, the through holes penetrate through the peripheral wall of the mounting seat, the through holes and the pin holes are symmetrically arranged with the axis of the taper shank as a center line, the axis of the through holes is collinear with the axis of the pin holes, and sealing plugs are arranged in the through holes.
8. The manual brake park cylinder release mechanism of claim 1, wherein a seal is disposed between the taper shank and the mounting block, the seal being located proximate an end of the taper shank extending beyond the mounting block.
9. A railway vehicle brake parking cylinder device, which is characterized by comprising a brake parking cylinder and the manual brake parking cylinder release mechanism of any one of claims 1 to 8, wherein a wedge is arranged on the brake parking cylinder, and the brake parking cylinder is connected with a release screw of the manual brake parking cylinder release mechanism through the wedge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910461899.XA CN110155115B (en) | 2019-05-30 | 2019-05-30 | Manual brake parking cylinder release mechanism and railway vehicle brake parking cylinder device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910461899.XA CN110155115B (en) | 2019-05-30 | 2019-05-30 | Manual brake parking cylinder release mechanism and railway vehicle brake parking cylinder device |
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| Publication Number | Publication Date |
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| CN110155115A CN110155115A (en) | 2019-08-23 |
| CN110155115B true CN110155115B (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910461899.XA Active CN110155115B (en) | 2019-05-30 | 2019-05-30 | Manual brake parking cylinder release mechanism and railway vehicle brake parking cylinder device |
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| CN (1) | CN110155115B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795618A (en) * | 2016-08-29 | 2018-03-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of checking cylinder clearance adjustment mechanism and checking cylinder |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4310739A1 (en) * | 1993-04-01 | 1994-10-06 | Knorr Bremse Ag | Device for venting a control line |
| CN2578196Y (en) * | 2002-10-22 | 2003-10-08 | 张继达 | Locomotive for orbital traffic, vehicle parking unit braker |
| CN201895670U (en) * | 2010-12-08 | 2011-07-13 | 青岛四方车辆研究所有限公司 | Spring braking device for railway vehicle unit brake |
| CN102358321A (en) * | 2011-09-13 | 2012-02-22 | 南车四方车辆有限公司 | Foldable handle and manual train brake device |
| CN105620508A (en) * | 2016-01-05 | 2016-06-01 | 中车株洲电力机车有限公司 | Tread brake unit and hand relieving device thereof |
| CN109080660B (en) * | 2018-08-10 | 2019-12-17 | 中车株洲电力机车有限公司 | passive hydraulic clamp and manual relieving mechanism thereof |
| CN208715179U (en) * | 2018-08-13 | 2019-04-09 | 眉山中车制动科技股份有限公司 | A kind of rail freight braking force holder |
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2019
- 2019-05-30 CN CN201910461899.XA patent/CN110155115B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107795618A (en) * | 2016-08-29 | 2018-03-13 | 中车戚墅堰机车车辆工艺研究所有限公司 | A kind of checking cylinder clearance adjustment mechanism and checking cylinder |
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| CN110155115A (en) | 2019-08-23 |
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