CN110834649A - Braking device for narrow-gauge boom truck bogie and bogie - Google Patents
Braking device for narrow-gauge boom truck bogie and bogie Download PDFInfo
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- CN110834649A CN110834649A CN201911224390.XA CN201911224390A CN110834649A CN 110834649 A CN110834649 A CN 110834649A CN 201911224390 A CN201911224390 A CN 201911224390A CN 110834649 A CN110834649 A CN 110834649A
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- brake
- wheel pair
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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
- B61H1/00—Applications or arrangements of brakes with a braking member or members co-operating with the periphery of the wheel rim, a drum, or the like
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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
- B61F5/50—Other details
- B61F5/52—Bogie frames
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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
- B61H13/20—Transmitting mechanisms
Abstract
The invention discloses a braking device for a narrow-gauge boom truck bogie and the bogie, wherein the bogie comprises a framework, a first wheel pair and a second wheel pair which are arranged on the framework, and the braking device comprises a pair of braking components which are respectively arranged on two sides of the framework and positioned between the first wheel pair and the second wheel pair; each brake assembly comprises a brake cylinder, a lever assembly, a first brake shoe and a second brake shoe, and the brake cylinder can respectively press the first brake shoe and the second brake shoe on the wheel treads of the first wheel pair and the second wheel pair, which are on the same side of the first wheel pair and the second wheel pair, so as to realize braking. The structure is compact, the weight is light, the manufacturing cost is low, and the use and the maintenance are convenient.
Description
Technical Field
The invention belongs to the technical field of railway vehicles, and particularly relates to a braking device for a narrow-gauge boom truck bogie and the bogie.
Background
The power bogie for narrow-gauge and meter-gauge engineering vehicles in the prior art is generally in hydrostatic drive, electric drive or mechanical drive, a braking system is mostly a brake disc or a unit brake, the unit brake is a molded product, the appearance and the size of the unit brake are fixed, the cost is high, the structure is complex, the maintenance difficulty is high, and meanwhile, the weight and the volume of the bogie are larger.
Therefore, it is desirable to develop a braking device for a narrow-gauge boom truck and a truck having compact structure, light weight, low manufacturing cost, and convenient use and maintenance.
Disclosure of Invention
The invention aims to provide a braking device for a narrow-gauge suspender bogie and the bogie, which have the advantages of compact structure, light weight, low manufacturing cost and convenient use and maintenance,
in order to achieve the above object, the present invention provides a braking device for a narrow-gauge boom truck, the truck comprising a frame, and a first wheel pair and a second wheel pair mounted on the frame, the braking device comprising a pair of braking assemblies, the pair of braking assemblies being respectively disposed on two sides of the frame and located between the first wheel pair and the second wheel pair;
each brake assembly comprises a brake cylinder, a lever assembly, a first brake shoe and a second brake shoe, and the brake cylinder can press the first brake shoe and the second brake shoe onto wheel treads of the first wheel pair and the second wheel pair on the same side of the first wheel pair and the second wheel pair respectively through the lever assembly so as to realize braking.
Preferably, the lever assembly comprises a transmission lever, a first brake lever, a second brake lever and a longitudinal pull rod;
the transmission lever is hinged to the frame through a first pin shaft in the horizontal direction, a piston rod of the brake cylinder is connected to one end of the transmission lever, and the piston rod of the brake cylinder can extend out of the brake cylinder in the direction of the second wheel pair;
the first brake lever is hinged to the framework along the vertical direction through a second pin shaft and is positioned at a wheel of the first wheel pair, the top end of the first brake lever is connected to the other end of the transmission lever, the first brake shoe is installed on the first brake lever and is positioned above the second pin shaft, and the first brake shoe faces to a wheel tread of the first wheel pair;
the second brake lever is hinged to the framework along the vertical direction through a third shaft pin and is positioned at a wheel of the second wheel pair, the second brake shoe is mounted on the second brake lever and is positioned below the third shaft pin, and the second brake shoe faces to a wheel tread of the second wheel pair;
the longitudinal pull rod is connected between the bottom end of the first brake lever and the bottom end of the second brake lever;
when a piston rod of the brake cylinder extends towards the direction of the second wheel pair, one end of the transmission lever moves towards the direction of the second wheel pair, the other end of the transmission lever moves towards the direction of the first wheel pair, so that the top end of the first brake lever is driven to move towards the direction of the first wheel pair, the first brake shoe is enabled to compress the wheel tread of the first wheel pair, meanwhile, the bottom end of the first brake lever moves towards the direction of the second wheel pair, the bottom end of the second brake lever is pushed by the longitudinal pull rod to move towards the direction of the second wheel pair, and the second brake shoe is enabled to compress the wheel tread of the second wheel pair.
Preferably, the piston rod is hinged to the one end of the transmission lever at a first hinge point, the first brake lever is hinged to the other end of the transmission lever at a second hinge point, and a distance between the first hinge point and the first pin is greater than a distance between the second hinge point and the first pin.
Preferably, the other end of the first brake lever is hinged to one end of the longitudinal pull rod at a third hinge point, and the distance between the second hinge point and the second pin is greater than the distance between the third hinge point and the second pin.
Preferably, the brake device further comprises a connecting rod, one end of the connecting rod is hinged to the framework, and the first brake lever is hinged to the other end of the connecting rod through the second pin shaft.
Preferably, a balance spring is connected between the first brake shoe and the first brake lever and between the second brake shoe and the second brake lever.
Preferably, a transverse pull rod is connected between the two first brake shoes and the two second brake shoes.
The present invention also provides a bogie comprising:
a frame;
a first wheel pair and a second wheel pair mounted to the frame;
a braking apparatus according to any one of claims 1 to 7.
Preferably, the frame comprises a central cross beam, two side beams and two i-shaped end beams, the two side beams are parallel to each other, two ends of the central cross beam are respectively fixed to the middle portions of the two side beams, the two i-shaped end beams are respectively arranged at the front end and the rear end of the central cross beam, and each i-shaped end beam is respectively fixedly connected with the end portions of the two side beams.
Preferably, axle boxes are respectively arranged on wheel shafts of the first wheel pair and the second wheel pair, hoisting hanging plates are arranged on the axle boxes, and a non-drop wheel turning interface is designed at the lower part of each axle box.
The invention has the beneficial effects that:
1. the braking device adopts lever type foundation braking, has low manufacturing cost, can meet the braking requirement by simplifying the braking structure of the whole vehicle under the condition of meeting the braking distance, has compact structure, light weight and low manufacturing cost, can save the cost by nearly 85 percent, and is convenient to use and maintain.
2. The structure of the framework facilitates optimizing the bogie structural layout.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings, in which like reference numerals generally represent like parts throughout.
Fig. 1 shows a side view of a bogie according to one embodiment of the invention.
Fig. 2 shows a top view of a bogie according to an embodiment of the invention.
Fig. 3 shows a schematic configuration diagram of a brake apparatus according to an embodiment of the present invention.
Description of the reference numerals
1. A frame; 2. a first pair of wheels; 3. a second pair of wheels; 4. a brake cylinder; 5. a transmission lever; 6. a first brake lever; 7. a connecting rod; 8. a first brake shoe; 9. a longitudinal tie rod; 10. a second brake lever; 11. a second brake shoe; 12. a transverse pull rod; 13. a side beam; 14. a central beam; 15. an I-shaped end beam; 16. a balance spring.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the invention.
The invention provides a braking device for a narrow-gauge boom truck bogie, which comprises a framework, a first wheel pair and a second wheel pair, wherein the first wheel pair and the second wheel pair are arranged on the framework;
each brake assembly comprises a brake cylinder, a lever assembly, a first brake shoe and a second brake shoe, and the brake cylinder can respectively press the first brake shoe and the second brake shoe on the wheel treads of the first wheel pair and the second wheel pair, which are on the same side of the first wheel pair and the second wheel pair, so as to realize braking.
Specifically, the braking device adopts lever type basic braking, has low manufacturing cost, can simplify the braking structure of the whole vehicle under the condition of meeting the braking distance, can meet the braking requirement that the initial braking speed is 70km/h and the braking distance is less than or equal to 200m, has compact structure, light weight and low manufacturing cost, can save the cost by nearly 85 percent, and is convenient to use and maintain.
Preferably, the lever assembly comprises a transmission lever, a first brake lever, a second brake lever and a longitudinal pull rod;
the transmission lever is hinged to the framework along the horizontal direction through a first pin shaft, a piston rod of the brake cylinder is connected to one end of the transmission lever, and the piston rod of the brake cylinder can extend out of the brake cylinder towards the direction of the second wheel pair;
the first brake lever is hinged to the framework along the vertical direction through a second pin shaft and is positioned at the wheel of the first wheel pair, the top end of the first brake lever is connected to the other end of the transmission lever, and the first brake shoe is mounted on the transmission lever
The first brake lever is positioned above the second pin shaft, and the first brake shoe faces to the wheel tread of the first wheel pair;
the second brake lever is hinged to the framework along the vertical direction through a third shaft pin and is positioned at the wheel of the second wheel pair, the second brake shoe is arranged on the second brake lever and is positioned below the third shaft pin, and the second brake shoe faces to the wheel tread of the second wheel pair;
the longitudinal pull rod is connected between the bottom end of the first brake lever and the bottom end of the second brake lever;
when a piston rod of the brake cylinder extends towards the direction of the second wheel pair, one end of the transmission lever moves towards the direction of the second wheel pair, the other end of the transmission lever moves towards the direction of the first wheel pair, so that the top end of the first brake lever is driven to move towards the direction of the first wheel pair, the first brake shoe is enabled to press the wheel tread of the first wheel pair, meanwhile, the bottom end of the first brake lever moves towards the direction of the second wheel pair, the bottom end of the second brake lever is pushed to move towards the direction of the second wheel pair through the longitudinal pull rod, and the second brake shoe is enabled to press the wheel tread of the second wheel pair.
Specifically, a piston rod of the brake cylinder pushes one end of a transmission lever to move towards the direction of a second wheel pair, and then the other end of the transmission lever moves towards the direction of a first wheel pair, so that the upper part of a first brake lever is driven to move towards the direction close to the first wheel pair, and a first brake shoe is enabled to tightly press a wheel tread of the first wheel pair; the upper part of the first brake lever moves towards the direction of the first wheel pair, then the lower part of the first brake lever moves towards the direction of the second wheel pair, and further the lower end of the second brake lever is pushed by the longitudinal connecting rod to move towards the direction of the second wheel pair, so that the second brake shoe presses the wheel tread of the second wheel pair, and braking is realized.
Preferably, the piston rod is hinged to one end of the transmission lever at a first hinge point, the first brake lever is hinged to the other end of the transmission lever at a second hinge point, and the distance between the first hinge point and the first pin shaft is larger than the distance between the second hinge point and the first pin shaft.
Specifically, the distance between the first hinge point and the first pin shaft is greater than the distance between the second hinge point and the first pin shaft, and then the thrust of the piston rod is amplified by the transmission lever and is transmitted to the first brake lever and the first brake shoe.
Preferably, the other end of the first brake lever is hinged to one end of the longitudinal pull rod at a third hinge point, and the distance between the second hinge point and the second pin shaft is larger than the distance between the third hinge point and the second pin shaft.
Specifically, the distance between the second hinge point and the second pin shaft is greater than the distance between the third hinge point and the second pin shaft, so that the thrust of the piston rod is further amplified and transmitted to the second brake lever and the second brake shoe.
As preferred scheme, still include the connecting rod, the one end of connecting rod articulates in the framework, and first brake lever articulates in the other end of connecting rod through second round pin axle.
Specifically, the connecting rod is hinged, so that the position of the second pin shaft can be changed, and the first brake lever is prevented from being broken when stressed.
Preferably, a balance spring is connected between the first brake shoe and the first brake lever and between the second brake shoe and the second brake lever.
Specifically, the balance spring is used for adjusting the vertical clearance between the first brake shoe and the wheel and between the second brake shoe and the wheel, so that the wheel is in uniform contact with the brake shoes.
Preferably, a transverse pull rod is connected between the two first brake shoes and between the two second brake shoes.
Specifically, the transverse pull rod is used for limiting the transverse movement of the two first brake shoes and the two second brake shoes during braking, so that eccentric wear of the brake shoes is prevented.
The present invention also provides a bogie comprising:
a frame;
a first wheel pair and a second wheel pair arranged on the framework;
a braking apparatus according to any one of claims 1 to 7.
As the preferred scheme, the framework comprises a central cross beam, two side beams and two I-shaped end beams, wherein the two side beams are parallel to each other, two ends of the central cross beam are respectively fixed in the middle parts of the two side beams, the two I-shaped end beams are respectively arranged at the front end and the rear end of the central cross beam, and each I-shaped end beam is respectively fixedly connected with the end parts of the two side beams.
Specifically, the central cross beam is a box-type central cross beam, the two side beams are box-type side beams, the structure of the framework is easier to produce and assemble, steel plate materials are saved on the premise of ensuring enough strength and rigidity, and the whole weight of the framework is reduced.
Furthermore, the side beam and the central cross beam are provided with a primary suspension device mounting seat, a secondary suspension device mounting seat, a traction device mounting seat, a foundation brake mounting seat, an axle gear box suspension mounting seat and other components, and the framework is subjected to stress removal treatment and then is integrally machined, so that the positioning size and precision are ensured.
Preferably, axle boxes are respectively arranged on the wheel shafts of the first wheel pair and the second wheel pair, hoisting hanging plates are arranged on the axle boxes, and the lower part of each axle box is provided with a non-drop wheel turning interface.
Specifically, the lifting plate is arranged to realize the binding-free lifting of the wheel pair and the axle box.
Furthermore, a single-stage axle gear box and a double-stage axle gear box are arranged on the wheel shafts of the first wheel pair and the second wheel pair, the gear boxes are compact in structure and can be provided with various transmission ratios, and the wheels and the wheel shafts of the wheel pairs are assembled by adopting an oil injection press-fitting process.
Examples
Fig. 1 shows a side view of a bogie according to the present embodiment; fig. 2 shows a top view of a bogie according to the present embodiment; fig. 3 shows a schematic configuration diagram of the brake apparatus according to the present embodiment.
As shown in fig. 1 to 3, the bogie comprises a frame 1 and a first wheel pair 2 and a second wheel pair 3 mounted on the frame 1, the frame 1 comprises a box-type central beam 14, two box-type side beams 13 and two i-shaped end beams 15, the two box-type side beams 13 are parallel to each other, two ends of the box-type central beam 14 are respectively fixed at the middle parts of the two box-type side beams 13, the two i-shaped end beams 15 are respectively arranged at the front end and the rear end of the box-type central beam 14, and each i-shaped end beam 15 is respectively fixedly connected with the end parts of the two box-type side beams 13, the structure of the frame 1 is easier to produce and assemble, steel plate materials are saved on the premise of ensuring enough strength and rigidity, the whole weight of the frame is reduced, the frame 1 is provided with a primary suspension device mounting seat, a secondary suspension device mounting seat, a traction device mounting seat, the joint frame is subjected to stress removal treatment and then integrally machined, so that the positioning size and precision are ensured;
the wheels and axles of the first wheel pair 2 and the second wheel pair 3 are assembled by adopting an oil injection press-fitting process, axle boxes are respectively arranged on the axles, hoisting hanging plates are arranged on the axle boxes, the wheel pairs and the axle boxes can be binderless without hoisting, the lower part of each axle box is provided with an undrawn wheel turning-in interface, the axle of the wheel pair is connected with a single-stage axle gear box and a two-stage axle gear box, the gear boxes are compact in structure and can be provided with various transmission ratios;
the braking device comprises a pair of braking components which are respectively arranged on two sides of the framework 1 and positioned between the first wheel pair 2 and the second wheel pair 3; each brake assembly comprises a brake cylinder 4, a lever assembly, a first brake shoe 8 and a second brake shoe 11, and the brake cylinder 4 can respectively press the first brake shoe 8 and the second brake shoe 11 on the wheel treads of the first wheel pair 2 and the second wheel pair 3 on the same side of the first wheel pair and the second wheel pair through the lever assembly so as to realize braking.
Wherein, the lever component comprises a transmission lever 5, a first brake lever 6, a second brake lever 10 and a longitudinal pull rod 9; the transmission lever 5 is hinged to the frame 1 in a horizontal direction by a first pin, the piston rod of the brake cylinder 2 is connected to one end of the transmission lever 5, and the piston rod of the brake cylinder 4 can move from the brake cylinder 4 to the frame
The second wheel pair 3 extends out; one end of a connecting rod 7 is hinged to the framework 1, a first brake lever 6 is hinged to the other end of the connecting rod 7 in the vertical direction through a second pin shaft and is located at the wheel of the first wheel pair 2, the top end of the first brake lever 6 is connected to the other end of the transmission lever 5, a first brake shoe 8 is installed on the first brake lever 6 and is located above the second pin shaft, and the first brake shoe 8 faces to the wheel tread of the first wheel pair 2; the second brake lever 10 is hinged to the frame 1 along the vertical direction through a third shaft pin and is positioned at the wheel of the second wheel pair 3, the second brake shoe 11 is installed on the second brake lever 10 and is positioned below the third shaft pin, and the second brake shoe 11 faces the wheel tread of the second wheel pair 3; the longitudinal pull rod 9 is connected between the bottom end of the first brake lever 6 and the bottom end of the second brake lever 10;
a piston rod of the brake cylinder 4 is hinged with one end of the transmission lever 5 at a first hinge point, the first brake lever 6 is hinged with the other end of the transmission lever 5 at a second hinge point, and the distance between the first hinge point and the first pin shaft is greater than the distance between the second hinge point and the first pin shaft; the other end of the first brake lever 6 is hinged with one end of the longitudinal pull rod 9 at a third hinge point, and the distance between the second hinge point and the second pin shaft is larger than the distance between the third hinge point and the second pin shaft.
When a piston rod of the brake cylinder 4 extends towards the direction of the second wheel pair 3, one end of the transmission lever 5 moves towards the direction of the second wheel pair 3, the other end of the transmission lever 5 moves towards the direction of the first wheel pair 2, so that the top end of the first brake lever 6 is driven to move towards the direction of the first wheel pair 2, the first brake shoe is enabled to press 8 the wheel tread of the first wheel pair 2, meanwhile, the bottom end of the first brake lever 6 moves towards the direction of the second wheel pair 3, the bottom end of the second brake lever 10 is pushed by the longitudinal pull rod 9 to move towards the direction of the second wheel pair 3, and the second brake shoe 11 is enabled to press the wheel tread of the second wheel pair 3.
Balance springs 16 are connected between the first brake shoes 8 and the first brake lever 6 and between the second brake shoes 11 and the second brake lever 10, and transverse pull rods 12 are connected between the two first brake shoes 8 and between the two second brake shoes 11.
The piston rod of the brake cylinder pushes one end of the transmission lever to move towards the direction of the second wheel pair, the other end of the transmission lever moves towards the direction of the first wheel pair, the upper portion of the first brake lever is driven to move towards the direction close to the first wheel pair, the first brake shoe presses the wheel tread of the first wheel pair, the lower portion of the first brake lever moves towards the direction of the second wheel pair when the upper portion of the first brake lever moves towards the direction of the first wheel pair, and the lower end of the second brake lever is pushed to move towards the direction of the second wheel pair through the longitudinal connecting rod, so that the second brake shoe presses the wheel tread of the second wheel pair.
The bogie is provided with a suspension device for alleviating the impact of a line on a vehicle body underframe and a frame, and effectively attenuating vertical and transverse vibration.
The traction device on the traction device mounting seat is composed of a center pin, a rubber bushing, a copper sleeve and the like, the center pin is mounted on a bottom price sleeper beam of the car body, and the traction pin seat is mounted at a central cross beam of the bogie frame and used for transmitting traction force and braking force between the bogie and the underframe and enabling the bogie to effectively pass through a railway curve.
The stone sweeper device is arranged at the end parts of two sides of the bogie and is used for clearing obstacles on the rail surface. Considering the limitation of a space structure of a narrow-gauge framework, the stone sweeper support is arranged on an end beam of the connecting framework, and the space position of the dry type wheel rim lubricating device is reserved; the sanding device comprises a sand box, a sanding pipe and a sanding valve and is used for increasing the friction coefficient between the wheel and the track.
The train stops within 200 meters when the initial speed of the train is 70km/h, the bogie has small wheelbase and limited space, the braking multiplying power needs to be greatly increased, the braking device adopting the scheme has no locking condition of braking wheels on a dry rail surface, the braking distance is 188 meters, the structural design is reasonable, and the design requirement when the braking distance of the initial speed of the train is less than or equal to 200m can be ensured.
Having described embodiments of the present invention, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.
Claims (10)
1. A braking device for a narrow-gauge boom truck bogie, which comprises a framework, and a first wheel pair and a second wheel pair which are arranged on the framework, is characterized in that the braking device comprises a pair of braking components which are respectively arranged on two sides of the framework and positioned between the first wheel pair and the second wheel pair;
each brake assembly comprises a brake cylinder, a lever assembly, a first brake shoe and a second brake shoe, and the brake cylinder can press the first brake shoe and the second brake shoe onto wheel treads of the first wheel pair and the second wheel pair on the same side of the first wheel pair and the second wheel pair respectively through the lever assembly so as to realize braking.
2. The brake apparatus for a narrow gauge boom car truck of claim 1 wherein said lever assembly comprises a transmission lever, a first brake lever, a second brake lever, a longitudinal tie rod;
the transmission lever is hinged to the frame through a first pin shaft in the horizontal direction, a piston rod of the brake cylinder is connected to one end of the transmission lever, and the piston rod of the brake cylinder can extend out of the brake cylinder in the direction of the second wheel pair;
the first brake lever is hinged to the framework along the vertical direction through a second pin shaft and is positioned at a wheel of the first wheel pair, the top end of the first brake lever is connected to the other end of the transmission lever, the first brake shoe is installed on the first brake lever and is positioned above the second pin shaft, and the first brake shoe faces to a wheel tread of the first wheel pair;
the second brake lever is hinged to the framework along the vertical direction through a third shaft pin and is positioned at a wheel of the second wheel pair, the second brake shoe is mounted on the second brake lever and is positioned below the third shaft pin, and the second brake shoe faces to a wheel tread of the second wheel pair;
the longitudinal pull rod is connected between the bottom end of the first brake lever and the bottom end of the second brake lever;
when a piston rod of the brake cylinder extends towards the direction of the second wheel pair, one end of the transmission lever moves towards the direction of the second wheel pair, the other end of the transmission lever moves towards the direction of the first wheel pair, so that the top end of the first brake lever is driven to move towards the direction of the first wheel pair, the first brake shoe is enabled to compress the wheel tread of the first wheel pair, meanwhile, the bottom end of the first brake lever moves towards the direction of the second wheel pair, the bottom end of the second brake lever is pushed by the longitudinal pull rod to move towards the direction of the second wheel pair, and the second brake shoe is enabled to compress the wheel tread of the second wheel pair.
3. The brake apparatus for a narrow gauge boom car truck of claim 2, wherein said piston rod is hinged to said one end of said transmission lever at a first hinge point, said first brake lever is hinged to said other end of said transmission lever at a second hinge point, and a distance between said first hinge point and said first pin is greater than a distance between said second hinge point and said first pin.
4. The brake apparatus for a narrow gauge boom car truck of claim 3, wherein the other end of said first brake lever is hinged to one end of said longitudinal tie at a third hinge point, the distance between said second hinge point and said second pin being greater than the distance between said third hinge point and said second pin.
5. The brake apparatus for a narrow gauge boom car truck of claim 2, further comprising a connecting rod, one end of said connecting rod being hinged to said frame, said first brake lever being hinged to the other end of said connecting rod through said second pin.
6. The brake apparatus for a narrow gauge boom car truck of claim 2, wherein a balance spring is connected between said first brake shoe and said first brake lever and between said second brake shoe and said second brake lever.
7. The brake rigging for a narrow gauge boom truck according to claim 1, wherein a tie rod is connected between each of the first and second brake shoes.
8. A bogie, characterized in that the bogie comprises:
a frame;
a first wheel pair and a second wheel pair mounted to the frame;
a braking apparatus according to any one of claims 1 to 7.
9. The bogie according to claim 8, wherein the frame comprises a central cross member, two side beams and two I-shaped end beams, the two side beams are parallel to each other, two ends of the central cross member are respectively fixed to the middle portions of the two side beams, the two I-shaped end beams are respectively arranged at the front end and the rear end of the central cross member, and each I-shaped end beam is respectively fixedly connected with the end portions of the two side beams.
10. The bogie according to claim 8, wherein axle boxes are respectively arranged on the wheel shafts of the first wheel pair and the second wheel pair, hoisting hanging plates are arranged on the axle boxes, and the lower part of each axle box is designed with an unshaded wheel turning interface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224390.XA CN110834649A (en) | 2019-12-04 | 2019-12-04 | Braking device for narrow-gauge boom truck bogie and bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911224390.XA CN110834649A (en) | 2019-12-04 | 2019-12-04 | Braking device for narrow-gauge boom truck bogie and bogie |
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| Publication Number | Publication Date |
|---|---|
| CN110834649A true CN110834649A (en) | 2020-02-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911224390.XA Pending CN110834649A (en) | 2019-12-04 | 2019-12-04 | Braking device for narrow-gauge boom truck bogie and bogie |
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| CN (1) | CN110834649A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023093685A1 (en) * | 2021-11-29 | 2023-06-01 | 中车山东机车车辆有限公司 | Braking system of rail vehicle with single-axle bogie, vehicle, and method |
| CN116674994A (en) * | 2023-08-02 | 2023-09-01 | 广州立新自动化设备有限公司 | transfer equipment |
-
2019
- 2019-12-04 CN CN201911224390.XA patent/CN110834649A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023093685A1 (en) * | 2021-11-29 | 2023-06-01 | 中车山东机车车辆有限公司 | Braking system of rail vehicle with single-axle bogie, vehicle, and method |
| CN116674994A (en) * | 2023-08-02 | 2023-09-01 | 广州立新自动化设备有限公司 | transfer equipment |
| CN116674994B (en) * | 2023-08-02 | 2023-09-26 | 广州立新自动化设备有限公司 | Transfer equipment |
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