CN219115450U - Triaxial bogie flexible foundation braking device and triaxial bogie - Google Patents
Triaxial bogie flexible foundation braking device and triaxial bogie Download PDFInfo
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- CN219115450U CN219115450U CN202320121785.2U CN202320121785U CN219115450U CN 219115450 U CN219115450 U CN 219115450U CN 202320121785 U CN202320121785 U CN 202320121785U CN 219115450 U CN219115450 U CN 219115450U
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Abstract
The utility model discloses a triaxial bogie flexible foundation braking device and a triaxial bogie, wherein the triaxial bogie flexible foundation braking device comprises a combined brake beam unit, a flexible brake unit and a lever guide unit; the combined brake beam unit comprises a first combined brake beam, a second combined brake beam and a third combined brake beam; the flexible braking unit is a flexible connecting rod mechanism and is flexibly connected with the first combined braking beam, the second combined braking beam and the third combined braking beam respectively; the lever guide unit is arranged above the sleeper beam and below the flexible braking unit, is movably contacted with the flexible braking unit through a limiting structure and is used for guiding the flexible braking unit. The flexible foundation brake device can fully utilize flexible connection to solve the problems of poor release of the lever brake device and blockage and clamping stagnation in the brake release process, and improves the curve passing capacity of the triaxial bogie.
Description
Technical Field
The utility model relates to a triaxial bogie flexible foundation braking device and a triaxial bogie.
Background
The three-axle bogie comprises a framework, a vibration damper, a foundation brake device, three wheel pairs and an axle box. Compared with a two-axle bogie, the three-axle bogie is added with a wheel pair, the structure is more complex, and the matched three-axle bogie foundation brake device is more complex.
The triaxial bogie has limited space due to the increased number of axles, is influenced by the position of the intermediate axle and the lower limit space of the combined brake beam and the vehicle, if the triaxial bogie foundation brake device adopts a similar middle pull rod or lower pull rod brake mode of the biaxial bogie, the travelling lever needs larger stroke space, and is limited by the triaxial bogie structure, the space for the action stroke of the travelling lever is very limited, the structure is difficult to realize, and the brake efficiency is greatly reduced after the brake shoe is worn.
There are reports of a basic brake device of a frame-type triaxial bogie, wherein four brake beams with brake shoes are horizontally hung on a brake head crane, two brake shoes in the middle are used for braking middle wheels, and brake shoes on two sides are used for braking wheels on two sides; the brake shoes on the four brake beams brake the wheels during braking through the four-bar drive mechanism.
Disclosure of Invention
Accordingly, an object of the present utility model is to provide a flexible foundation brake device for a three-axle bogie, which can fully utilize flexible connection to solve the problems of poor release of the lever brake device and blockage and jamming in the brake release process. Another object of the utility model is to provide a three axle bogie.
The utility model adopts the following technical scheme to realize the aim.
The utility model provides a flexible foundation brake device of a triaxial bogie, which comprises a framework, wherein the framework comprises a sleeper beam, two cross beams and two side beams; the two side beams are arranged in parallel, the two cross beams are vertically arranged between the two side beams, and the two cross beams are arranged at intervals; the two cross beams are a first cross beam and a second cross beam respectively; the sleeper beam is vertically arranged between the two cross beams and is positioned in the middle of the framework;
the triaxial bogie flexible foundation braking device comprises a combined braking beam unit, a flexible braking unit and a lever guiding unit;
the combined type brake beam unit comprises a first combined type brake beam, a second combined type brake beam and a third combined type brake beam; the first combined brake beam and the second combined brake beam are symmetrically arranged on two sides of the first cross beam; the third combined brake Liang She is arranged on one side of the second beam away from the first beam;
the flexible braking unit is a flexible connecting rod mechanism and is flexibly connected with the first combined braking beam, the second combined braking beam and the third combined braking beam respectively;
the lever guide unit is arranged above the sleeper beam and below the flexible braking unit, is movably contacted with the flexible braking unit through a limiting structure and is used for guiding the flexible braking unit. Therefore, flexible connection can be fully utilized, the problems of poor release of a lever braking device and blockage and clamping stagnation in the braking release process are solved, and the curve passing capacity of the triaxial bogie is improved. In addition, the lever guide unit is used for guiding and limiting, so that the braking trend of the braking device is ensured.
In the utility model, the first combined brake beam, the second combined brake beam and the third combined brake beam have basically the same structure and are combined sliding block brake beams which comprise isosceles triangle structural members and upright posts. The isosceles triangle structure includes one base side and two waist parts. It can be an integrally formed structure or a connected structure. The upright posts are perpendicular to the bottom edge portion. One end of the upright post is connected with the top point of the isosceles triangle structural member, and the other end of the upright post is connected with the bottom edge of the isosceles triangle structural member. In the utility model, the three-axle bogie further comprises three groups of wheel sets, and the three groups of wheel sets are arranged below the framework.
According to the triaxial bogie flexible foundation brake device of the present utility model, preferably, the flexible brake unit includes a first fixed lever, a second fixed lever, a third fixed lever, a traveling horizontal lever, a connecting rod, a horizontal lever and a brace;
one end of the first fixed lever is flexibly connected with the first combined brake beam, and the other end of the first fixed lever is flexibly connected with one end of the swimming horizontal lever;
the other end of the swimming horizontal lever is a free end;
one end of the second fixed lever is flexibly connected with the second combined brake beam, and the other end of the second fixed lever is flexibly connected with one end of the horizontal lever;
the horizontal lever and the swimming horizontal lever are arranged at intervals and are flexibly connected through the connecting rod; one end of the horizontal lever, which is far away from the second fixed lever, is flexibly connected with the brace; the horizontal lever is arranged basically vertical to the brace;
one end of the brace, which is far away from the horizontal lever, is flexibly connected with one end of the third fixed lever; the other end of the third fixed lever is flexibly connected with the third combined brake beam. Thus, the problems of poor release of the lever braking device and blockage and clamping stagnation in the braking release process are solved through flexible connection.
According to the triaxial bogie flexible foundation brake device of the present utility model, preferably, the flexible brake unit further includes a plurality of ball hinge bushings, a link group, a first link ring and a second link ring;
the swimming horizontal lever is flexibly connected with the first fixed lever through the chain ring group; the horizontal lever is flexibly connected with the second fixed lever through the first chain hoof ring; the third fixing lever is flexibly connected with the brace through a second chain hoof ring;
the brace is flexibly connected with the horizontal lever through a spherical hinge bushing; the connecting rod is flexibly connected with the horizontal lever and the swimming horizontal lever through spherical hinge bushings respectively; the first fixed lever, the second fixed lever and the third fixed lever are respectively flexibly connected with the first combined brake beam, the second combined brake beam and the third combined brake beam through spherical hinge bushings. The flexible connecting rod mechanism adopts flexible connection modes such as the spherical hinge bush, the flexible chain and the like, so that flexible connection in an assembly gap is realized, the movable angle of the pin shaft and the space movable degree of freedom of the lever are increased, the phenomena of blockage and clamping stagnation of the braking device in the braking relieving process are avoided, and the curve passing capacity of the triaxial bogie is improved. The flexible connection mode of the connecting rod, the movable horizontal lever and the horizontal lever is beneficial to realizing the action and the maintenance of braking force after the brake shoe is worn.
In the utility model, the spherical hinge bushing connection method is used, so that the movement flexibility of the connection part can be increased, the contact stress area can be effectively increased, and the stress state of the connection part can be improved. The flexible pivot of the chain shoe ring is flexibly connected with the flexible pivot of the chain ring group, so that the flexibility of lever action is enhanced, and the natural relief of the foundation brake device is facilitated; meanwhile, when the curve is passed, the phenomenon that the action of the foundation braking device is blocked due to the fact that the first wheel pair wheelbase and the third wheel pair wheelbase of the three-axle bogie are too long compared with the two-axle bogie can be avoided, and the curve passing capacity of the three-axle bogie is improved.
In the utility model, the two ends of the first fixed lever, the second fixed lever, the third fixed lever, the swimming horizontal lever and the horizontal lever are respectively provided with a pin hole, and the pin holes are internally provided with spherical hinge bushings. In certain embodiments, the spherical hinge sleeve is formed from a spherical drum liner, an upper sleeve body, and a lower sleeve body; the middle part of the ball drum-shaped lining is provided with a hole, the upper sleeve body and the lower sleeve body are respectively arranged around the ball drum-shaped lining, and the upper sleeve body is positioned above the lower sleeve body. In the utility model, pin holes are respectively arranged on the swimming horizontal lever and the middle accessory of the horizontal lever, and a spherical hinge bushing is arranged in the pin holes.
In the utility model, the swimming horizontal lever is connected with the first fixed lever through the flexible supporting point of the chain ring group, so that the space force transmission between the horizontal lever and the plumb bob is realized. And the horizontal force transmission between the horizontal lever and the second fixed lever and the brace between the third fixed lever and the brace through the flexible pivot of the chain hoof ring can realize the space force transmission between the horizontal force and the plumb.
In certain specific embodiments, the swimming horizontal lever is flexibly connected with the first fixed lever through the chain ring group and the spherical hinge bush; the horizontal lever is flexibly connected with the second fixed lever through the first chain hoof ring and the spherical hinge bushing; the third fixing lever is flexibly connected with the brace through a second chain hoof ring and a spherical hinge bushing.
According to the triaxial bogie flexible foundation brake device, preferably, the first fixing lever, the second fixing lever and the third fixing lever are all double-bending structures. Therefore, the welding frame can be better adapted to the inner space of the integral welding frame, and interference is avoided. The double-bending structure disclosed by the utility model is similar to a Z-shaped structure.
According to the triaxial bogie flexible foundation brake device of the present utility model, preferably, the third fixed lever includes a first lever portion, a second lever portion and a third lever portion which are sequentially connected; the first lever part, the second lever part and the third lever part form a double-bending structure;
one end of the first lever part, which is far away from the second lever part, is flexibly connected with the brace; an L-shaped structure is formed between the first lever part and the second lever part, and an included angle opening of the first lever part and the second lever part faces away from the third combined brake beam; the included angle between the second lever part and the plane where the third combined brake beam is positioned is more than 20 degrees and less than 75 degrees; and one end of the third lever part, which is far away from the second lever part, is flexibly connected with the third combined brake beam. The structure can be better adapted to the inner side space of the integral welding framework, avoids interference, is beneficial to realizing braking and improves braking efficiency.
In the present utility model, the angle between the second lever portion and the plane of the third composite brake beam is preferably greater than 25 ° and less than 65 °. The first lever portion is disposed substantially vertically.
According to the triaxial bogie flexible foundation brake device, preferably, the flexible brake unit further comprises a connecting seat and a fixing seat; one end of the connecting seat is flexibly connected with the position near the middle part of the second lever part through a spherical hinge bushing, and the other end of the connecting seat is flexibly connected with one end of the fixed seat through a spherical hinge bushing; the other end of the fixed seat is fixed on the side wall of the second cross beam. This secures the flexible brake unit to the frame on the one hand and enables a flexible connection on the other hand.
The triaxial bogie flexible foundation brake device according to the present utility model preferably:
the lever guide unit comprises two guide beams, a supporting plate and a guide beam limiting plate; wherein the two guide beams are oppositely arranged in parallel; the guide beam comprises a vertical plate and a horizontal plate which are vertically connected; the supporting plate is vertically arranged below the two guide beams and is close to the end parts of the guide beams; the guide beam limiting plates are arranged at two ends of the guide beam;
the limiting structure is arranged at the bottoms of the swimming horizontal lever and the horizontal lever, and the projection of the limiting structure in the horizontal direction is L-shaped;
the limiting structure is arranged to be matched with the horizontal plate of the guide beam. Therefore, the flexible lever mechanism can be ensured and limited to always keep horizontal movement within a certain height range in the braking relief action process.
According to the triaxial bogie flexible foundation brake device, preferably, the lever guide unit further comprises a plurality of reinforcing rib plates; the reinforcing rib plates are respectively distributed on the outer sides of the vertical plates of the guide beams and are perpendicular to the vertical plates. This is advantageous in improving the structural stability of the lever guide unit.
According to the triaxial bogie flexible foundation brake device, preferably, a plurality of chute bodies are symmetrically arranged below the first cross beam; a plurality of chute bodies are symmetrically arranged below the second cross beam far away from the first cross beam;
the first combined brake beam, the second combined brake beam and the third combined brake beam are respectively symmetrically provided with a plurality of brake heads; a brake shoe is arranged on the brake head;
the brake head is matched with the chute. The three-axle bogie flexible foundation braking device adopts six brake shoes for braking by arranging three combined brake beams, thereby meeting the emergency braking requirement of a train and improving the operation safety.
In another aspect, the present utility model also provides a three-axle bogie comprising a three-axle bogie flexible foundation brake device as described above. The triaxial bogie of the utility model further comprises a framework, and the triaxial bogie flexible foundation braking device is arranged on the framework.
The framework of the utility model comprises a sleeper beam, two cross beams and two side beams. The two side beams are arranged in parallel, the two cross beams are vertically arranged between the two side beams, and the two cross beams are arranged at intervals; the two cross beams are a first cross beam and a second cross beam respectively; the sleeper beam is vertically arranged between the two cross beams and is positioned in the middle of the framework.
The first combined brake beam and the second combined brake beam of the triaxial bogie flexible foundation brake device are symmetrically arranged on two sides of the first cross beam; the third corporation stop Liang She is disposed on a side of the second beam remote from the first beam.
The lever guide unit of the triaxial bogie flexible foundation brake device is arranged above the sleeper beam and below the flexible brake unit of the triaxial bogie flexible foundation brake device, and the lever guide unit is movably contacted with the flexible brake unit through a limiting structure and used for guiding the flexible brake unit.
The flexible foundation brake device for the three-axle bogie can fully utilize flexible connection to solve the problems of poor release of the lever brake device and blockage and clamping stagnation in the brake release process, and improve the curve passing capability of the three-axle bogie. According to the preferable technical scheme, the lever action flexibility is enhanced by adopting the flexible connection modes such as the spherical hinge bushing, the flexible chain and the like; by arranging the lever guide device, the horizontal lever is ensured to horizontally act within a certain height range on the premise of not reducing the braking efficiency; and through the connecting rod structure, the brake force can be maintained in a guide hole mode after the brake shoe is worn.
Drawings
Fig. 1 is a schematic structural view of a flexible foundation brake device for a three-axle bogie according to the present utility model.
Fig. 2 is an isometric view of a three-axle bogie flexible foundation brake device of the present utility model.
Fig. 3 is a partial schematic view of fig. 2.
Fig. 4 is a schematic front view of the horizontal lever of the present utility model.
Fig. 5 is a schematic top view of the horizontal lever of the present utility model.
Fig. 6 is a schematic cross-sectional view of a spherical hinge bush according to the present utility model.
Fig. 7 is a schematic structural view of the lever guide unit of the present utility model.
The reference numerals are explained as follows:
1-a framework, 11-a sleeper beam, 12-a first cross beam, 13-a second cross beam and 14-a side beam;
100-a flexible foundation brake device of a three-axle bogie; 110-composite brake beam unit, 111-first composite brake beam, 112-second composite brake beam, 113-third composite brake beam, 1101-brake head, 1102-brake shoe; 120-a flexible braking unit, 121-a first fixed lever, 122-a second fixed lever, 123-a third fixed lever, 1231-a first lever part, 1232-a second lever part, 1233-a third lever part, 124-a swimming horizontal lever, 125-a connecting rod, 126-a horizontal lever, 127-a brace, 128-a connecting seat, 129-a fixed seat; 130-lever guide units, 131-guide beams, 132-supporting plates, 133-guide beam limiting plates and 134-reinforcing rib plates; 140-limiting structure;
40-ball hinge bush, 41-ball drum lining, 42-upper sleeve body and 43-lower sleeve body; 50-a chain ring set; 60-a first chain shoe ring; 70-second chain shoe ring.
Detailed Description
The present utility model will be further described with reference to specific examples, but the scope of the present utility model is not limited thereto.
Example 1
Fig. 1 is a schematic structural view of a flexible foundation brake device for a three-axle bogie according to the present utility model. Fig. 2 is an isometric view of a three-axle bogie flexible foundation brake device of the present utility model.
Fig. 3 is a partial schematic view of fig. 2. Fig. 4 is a schematic front view of the horizontal lever of the present utility model. Fig. 5 is a schematic top view of the horizontal lever of the present utility model. Fig. 6 is a schematic cross-sectional view of a spherical hinge bush according to the present utility model. Fig. 7 is a schematic structural view of the lever guide unit of the present utility model.
As shown in fig. 1, the three-axle bogie according to the present utility model comprises a frame 1 and three wheel sets. The three sets of wheel sets are arranged below the framework 1. The frame 1 includes a bolster 11, two cross members, and two side members 14. The frame 1 may be of unitary construction. The two side beams 14 are arranged in parallel, the two cross beams are vertically arranged between the two side beams 14, and the two cross beams are arranged at intervals. The two beams are a first beam 12 and a second beam 13, respectively. The sleeper beam 11 is vertically arranged between the two cross beams, and the sleeper beam 11 is positioned in the middle of the framework 1.
Four chute bodies are symmetrically arranged below the first cross beam 12. Two chute bodies are symmetrically arranged below the second cross beam 13 far away from the first cross beam 12.
As shown in fig. 1 to 7, the three-axle bogie flexible foundation brake device 100 of the present utility model includes a combination brake beam unit 110, a flexible brake unit 120, a lever guide unit 130, and a limit structure 140.
The composite brake beam unit 110 includes a first composite brake beam 111, a second composite brake beam 112, and a third composite brake beam 113. The first and second composite brake beams 111 and 112 are symmetrically disposed on both sides of the first cross member 12. The third composite brake beam 113 is disposed on a side of the second cross beam 13 remote from the first cross beam 12.
As shown in fig. 2, the first composite brake beam 111, the second composite brake beam 112, and the third composite brake beam 113 have substantially the same structure, and each includes an isosceles triangle structure and a column, which is perpendicular to a bottom side of the isosceles triangle structure. One end of the upright post is connected with the top point of the isosceles triangle structural part, and the other end is connected with the bottom edge part.
As shown in fig. 3, both end portions of the first, second and third composite brake beams 111, 112 and 113 are symmetrically provided with brake heads 1101, respectively. Brake head 1101 has brake shoe 1102 disposed thereon. Brake head 1101 mates with the chute. The tri-axle bogie flexible foundation brake device 100 can thus be fixed to the frame 1 by the mating connection of the brake head 1101 and the chute body, and mechanical braking can be achieved by generating friction braking force through the interaction of the brake shoe 1102 and the wheel set after the pressure of the brake cylinder is amplified.
As shown in fig. 1 and 2, the flexible brake unit 120 is a flexible link mechanism, which is flexibly connected to the first, second and third composite brake beams 111, 112 and 113, respectively.
As shown in fig. 2, the flexible brake unit 120 includes a first fixing lever 121, a second fixing lever 122, a third fixing lever 123, a walk-around horizontal lever 124, a link 125, a horizontal lever 126, a stay 127, a connection seat 128, a fixing seat 129, a ball-and-socket bush 40, a link group 50, a first link ring 60, and a second link ring 70.
As shown in fig. 4 and 6, the first, second, third and movable horizontal levers 121, 122, 123, 124, 126 are provided with pin holes at both ends thereof, respectively, in which the ball pivot bushing 40 is installed. The spherical hinge bush 40 is composed of a spherical drum-shaped inner liner 41, an upper sleeve body 42 and a lower sleeve body 43.
As shown in fig. 2 and 3, the first fixing lever 121, the second fixing lever 122 and the third fixing lever 123 are all double-bent structures, i.e., are in a "Z" -shaped structure.
One end of the first fixed lever 121 is flexibly connected with the upright post of the first combined brake beam 111 through the spherical hinge bush 40, and the other end is flexibly connected with one end of the traveling horizontal lever 124 through the link group 50. The other end of the traveling horizontal lever 124 is a free end.
One end of the second fixed lever 122 is flexibly connected with the upright post of the second combined brake beam 112 through the spherical hinge bush 40, and the other end is flexibly connected with one end of the horizontal lever 126 through the first link shoe ring 60.
The middle parts of the horizontal lever 126 and the floating horizontal lever 124 are respectively provided with a pin hole, and the pin holes are internally provided with spherical hinge bushings 40. The horizontal lever 126 and the swimming horizontal lever 124 are arranged at intervals, and the middle parts of the horizontal lever 126 and the swimming horizontal lever 124 are flexibly connected with the spherical hinge bush 40 through the connecting rod 125. The end of the horizontal lever 126 remote from the second fixed lever 122 is flexibly connected with a brace 127 through a ball pivot bushing 40. The horizontal lever 126 is substantially perpendicular to the brace 127.
The end of the stay 127 remote from the horizontal lever 126 is flexibly connected to the end of the third fixing lever 123 through the second link shoe 70.
As shown in fig. 3, the third fixing lever 123 includes a first lever part 1231, a second lever part 1232, and a third lever part 1233 connected in sequence. The first, second and third lever portions 1231, 1232 and 1233 form a double bending structure. The end of the first lever portion 1231 remote from the second lever portion 1232 is flexibly coupled to the stay 127 by the second link ring 70. An L-like structure is formed between the first lever portion 1231 and the second lever portion 1232, and the opening of the included angle between the two is upward, that is, the opening of the included angle between the two faces away from the third composite brake beam 113. The angle between the second lever portion 1232 and the plane of the third composite brake beam 113 is greater than 20 ° and less than 75 °, preferably greater than or equal to 25 ° and less than 65 °. The end of the third lever part 1233, which is far from the second lever part 1232, is flexibly connected with the third composite brake beam 113 through the ball pivot bushing 40.
As shown in fig. 2, one end of the connection seat 128 is flexibly connected to a position near the middle of the second lever portion through the ball pivot bushing 40, and the other end is flexibly connected to one end of the fixing seat 129 through the ball pivot bushing 40. The other end of the fixing seat 129 is fixed to a side wall of the second beam 13.
The lever guiding unit 130 is disposed above the bolster 11 and below the flexible braking unit 120, and is in movable contact with the flexible braking unit 120 through the limiting structure 140, for guiding the flexible braking unit 120.
The lever guide unit 130 includes two guide beams 131, a pallet 132, a guide beam limiting plate 133, and a reinforcing rib plate 134. The two guide beams 131 are arranged in parallel. The guide beam 131 includes a vertical plate and a horizontal plate vertically connected. The pallet 132 is vertically disposed below the two guide beams 131 and near the ends of the guide beams 131. The guide beam limiting plates 133 are disposed at both ends of the guide beam 131. The reinforcing rib 134 is a plurality of pieces. The reinforcing rib plates 134 are uniformly distributed on the outer sides of the vertical plates of the guide beams 131 and are perpendicular to the vertical plates.
The limiting structure 140 is disposed at the bottoms of the horizontal lever 124 and the horizontal lever 126, and has an L-shaped projection in the horizontal direction. The number of the limiting structures 140 is plural, for example, four limiting structures 140. Two of the limiting structures 140 are disposed at the bottom of the traveling horizontal lever 124, and the other two limiting structures 140 are disposed at the bottom of the horizontal lever 126. The limiting structure 140 includes a base and an L-shaped limiting block. The base sets up in the bottom of swimming horizontal lever 124 and horizontal lever 126 respectively, and L type stopper sets up on the base.
The limit structure 140 is matched with the horizontal plate of the guide beam 131, so that the guiding and limiting of the flexible brake unit 120 is realized through the lever guiding unit 130 and the limit structure 140.
Example 2
The present embodiment provides a three-axle bogie comprising the three-axle bogie flexible foundation brake device 100 of embodiment 1.
The present utility model is not limited to the above-described embodiments, and any modifications, improvements, substitutions, and the like, which may occur to those skilled in the art, fall within the scope of the present utility model without departing from the spirit of the utility model.
Claims (10)
1. A triaxial bogie flexible foundation brake device, the triaxial bogie comprises a framework, the framework comprises a sleeper beam, two cross beams and two side beams; the two side beams are arranged in parallel, the two cross beams are vertically arranged between the two side beams, and the two cross beams are arranged at intervals; the two cross beams are a first cross beam and a second cross beam respectively; the sleeper beam is vertically arranged between the two cross beams and is positioned in the middle of the framework; the method is characterized in that:
the triaxial bogie flexible foundation braking device comprises a combined braking beam unit, a flexible braking unit and a lever guiding unit;
the combined type brake beam unit comprises a first combined type brake beam, a second combined type brake beam and a third combined type brake beam; the first combined brake beam and the second combined brake beam are symmetrically arranged on two sides of the first cross beam; the third combined brake Liang She is arranged on one side of the second beam away from the first beam;
the flexible braking unit is a flexible connecting rod mechanism and is flexibly connected with the first combined braking beam, the second combined braking beam and the third combined braking beam respectively;
the lever guide unit is arranged above the sleeper beam and below the flexible braking unit, is movably contacted with the flexible braking unit through a limiting structure and is used for guiding the flexible braking unit.
2. The three-axle bogie flexible foundation brake device of claim 1, wherein the flexible brake unit comprises a first fixed lever, a second fixed lever, a third fixed lever, a walk-behind horizontal lever, a connecting rod, a horizontal lever, and a brace;
one end of the first fixed lever is flexibly connected with the first combined brake beam, and the other end of the first fixed lever is flexibly connected with one end of the swimming horizontal lever;
the other end of the swimming horizontal lever is a free end;
one end of the second fixed lever is flexibly connected with the second combined brake beam, and the other end of the second fixed lever is flexibly connected with one end of the horizontal lever;
the horizontal lever and the swimming horizontal lever are arranged at intervals and are flexibly connected through the connecting rod; one end of the horizontal lever, which is far away from the second fixed lever, is flexibly connected with the brace; the horizontal lever is arranged basically vertical to the brace;
one end of the brace, which is far away from the horizontal lever, is flexibly connected with one end of the third fixed lever; the other end of the third fixed lever is flexibly connected with the third combined brake beam.
3. The three-axle bogie flexible foundation brake device of claim 2, wherein the flexible brake unit further comprises a plurality of ball pivot bushings, a link set, a first link ring and a second link ring;
the swimming horizontal lever is flexibly connected with the first fixed lever through the chain ring group; the horizontal lever is flexibly connected with the second fixed lever through the first chain hoof ring; the third fixing lever is flexibly connected with the brace through a second chain hoof ring;
the brace is flexibly connected with the horizontal lever through a spherical hinge bushing; the connecting rod is flexibly connected with the horizontal lever and the swimming horizontal lever through spherical hinge bushings respectively; the first fixed lever, the second fixed lever and the third fixed lever are respectively flexibly connected with the first combined brake beam, the second combined brake beam and the third combined brake beam through spherical hinge bushings.
4. The triaxial bogie flexible foundation brake device according to claim 3, wherein the first, second and third fixing levers are double-bent structures.
5. The three-axle bogie flexible foundation brake device of claim 3, wherein the third fixed lever comprises a first lever portion, a second lever portion and a third lever portion connected in sequence; the first lever part, the second lever part and the third lever part form a double-bending structure;
one end of the first lever part, which is far away from the second lever part, is flexibly connected with the brace; an L-shaped structure is formed between the first lever part and the second lever part, and an included angle opening of the first lever part and the second lever part faces away from the third combined brake beam; the included angle between the second lever part and the plane where the third combined brake beam is positioned is more than 20 degrees and less than 75 degrees; and one end of the third lever part, which is far away from the second lever part, is flexibly connected with the third combined brake beam.
6. The three-axle bogie flexible foundation brake device of claim 5, wherein the flexible brake unit further comprises a connection base and a fixing base; one end of the connecting seat is flexibly connected with the position near the middle part of the second lever part through a spherical hinge bushing, and the other end of the connecting seat is flexibly connected with one end of the fixed seat through a spherical hinge bushing; the other end of the fixed seat is fixed on the side wall of the second cross beam.
7. The three-axle bogie flexible foundation brake device of claim 2, wherein:
the lever guide unit comprises two guide beams, a supporting plate and a guide beam limiting plate; wherein the two guide beams are oppositely arranged in parallel; the guide beam comprises a vertical plate and a horizontal plate which are vertically connected; the supporting plate is vertically arranged below the two guide beams and is close to the end parts of the guide beams; the guide beam limiting plates are arranged at two ends of the guide beam;
the limiting structure is arranged at the bottoms of the swimming horizontal lever and the horizontal lever, and the projection of the limiting structure in the horizontal direction is L-shaped;
the limiting structure is arranged to be matched with the horizontal plate of the guide beam.
8. The three-axle bogie flexible foundation brake device of claim 7, wherein the lever guide unit further comprises a plurality of reinforcing ribs; the reinforcing rib plates are uniformly distributed on the outer sides of the vertical plates of the guide beams and are perpendicular to the vertical plates 。
9. The flexible foundation brake device of a three-axle bogie according to any one of claims 1 to 8, wherein a plurality of chute bodies are symmetrically arranged below the first cross beam; a plurality of chute bodies are symmetrically arranged below the second cross beam far away from the first cross beam;
the first combined brake beam, the second combined brake beam and the third combined brake beam are respectively symmetrically provided with a plurality of brake heads; a brake shoe is arranged on the brake head;
the brake head is matched with the chute.
10. A three-axle bogie, characterized in that it comprises a three-axle bogie flexible foundation brake device according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320121785.2U CN219115450U (en) | 2023-01-18 | 2023-01-18 | Triaxial bogie flexible foundation braking device and triaxial bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320121785.2U CN219115450U (en) | 2023-01-18 | 2023-01-18 | Triaxial bogie flexible foundation braking device and triaxial bogie |
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| CN219115450U true CN219115450U (en) | 2023-06-02 |
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| CN202320121785.2U Active CN219115450U (en) | 2023-01-18 | 2023-01-18 | Triaxial bogie flexible foundation braking device and triaxial bogie |
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| CN (1) | CN219115450U (en) |
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