CN207089298U - A kind of bogie for reducing Straddle type monorail transportation vehicle and rocking - Google Patents

Abstract

This patent discloses a kind of bogie for reducing Straddle type monorail transportation vehicle and rocking, belong to monorail transit field.This patent sets three traveling wheel shafts by respectively arranging two steady wheels between the left side of bogie and right hand guide wheels.The directive wheel on bogie main frame, steady wheel is set to collectively form a stable stress system, reduce rocking for Straddle type monorail transportation vehicle, make up easily to come to nothing to rock and reverse in vehicle travel process at this stage and rock larger deficiency, while improve the security during car operation.

Description

A Bogie for Reducing Shaking of Straddle Monorail Vehicles

technical field

This patent relates to a bogie for reducing shaking of a straddle monorail traffic vehicle, which is applied to a straddle monorail traffic vehicle. Specifically, two stabilizing arms with stabilizing wheels are arranged on both sides of the bogie to form a stable stress system and reduce the shaking of the vehicle, which belongs to the field of straddle-type monorail transportation.

Background technique

The straddle-type monorail traffic is that the vehicle is straddled on the track beam, and the track beam is not only the load-bearing structure but also the guiding structure when the vehicle is running. The bogie of the straddle-type monorail vehicle is located under the carriage, and is mainly composed of the main frame of the bogie, running wheels, guide wheels, stabilizing wheels and other auxiliary equipment. Traveling wheels and guide wheels are arranged on the left and right sides of the bogie. As used herein, the term "left side" refers to the left side of the vehicle's forward direction, corresponding to the side where the stabilizing wheel 5c is located in Figure 2; the term "right side" refers to the right side of the vehicle's traveling direction, corresponding to the stabilizing wheel 5a in Figure 2 side; the term "stabilizing arm" refers to the components installed on the main frame of the bogie and used to install the stabilizing wheel; the term "emphasis point" refers to the contact point between the stabilizing wheel or guide wheel and the track beam; the term "bogie "Main frame" refers to the main force-bearing structure of the bogie, on which all components and devices such as the stabilizing arms and guide arms of the bogie are installed, such as the main frame 1 of the bogie shown in Figure 2 . The term "coaxial" means that the hubs of the guide wheels and the stable wheels on the same bogie on the same side of the straddle-type monorail vehicle are on the same axis. The jolting feeling of a straddle-type monorail vehicle is much smaller than that of a subway vehicle, but since the monorail vehicle only runs on one track beam line, and the center of gravity of the carriage is relatively high, the straddle-type monorail vehicle passes under the action of lateral load. There will be large shaking at the joint plate of the track beam, which will easily cause the vehicle to run unevenly and affect the comfort of passengers.

The existing straddle-type monorail traffic vehicle bogies mostly adopt the structure of a single-stabilizing arm on the left and right sides, such as a monorail bogie disclosed in Patent No. JP2000204503A, the single-stabilizing arm is located between two adjacent guide wheels. In the center position, vehicles using this type of bogie are stressed and stable during normal driving. However, when the vehicle passes through the seam plates of the adjacent track beams, the stabilizing wheel on the single stabilizer arm will be out of the air, causing the vehicle to shake out of the air.

In addition, this type of bogie adopts a single-stabilized arm structure on the left and right sides, and the single-stabilized arms on both sides are likely to trigger the "chord effect" during the normal running of the vehicle. More precisely, when the monorail train passes When the track is curved, the upper guide wheel is located next to the chord part of the curved part, while the lower stabilizing wheel is at the midpoint of the chord part, which will cause the deviation and lateral shaking of the car body, affecting the smoothness of the vehicle when driving sex. The structure proposed in this patent cannot solve the problems mentioned above.

Chinese patent application number CN102076545A discloses a bogie assembly, which proposes to use two stabilizing wheels coaxial with the guide wheels, but the patent uses the stabilizing wheels coaxially with the guiding wheels, and when passing through the track beam joints, the front The coaxial guide wheel and the stabilizing wheel are separated, which cannot solve the problem of excessive torsional shaking of the vehicle, and there is no description of the stabilizing wheel being located in other positions.

Chinese Patent Application No. CN103889811A discloses a bogie auxiliary device, which proposes that its only stabilizing wheel can be located at any position between the guide wheels, but the bogie structure proposed by it cannot achieve the optimal state of stress on the car body, and the only When the stable wheels pass through the joints of adjacent track beams, the phenomenon of voiding will also occur, which cannot solve the problem of excessive shaking of the vehicle caused by the voiding and torsion proposed by the present invention.

In view of the above problems, combined with the actual situation that straddle monorail vehicles are prone to large shaking, the inventor, after analysis, based on the existing theory and practical experience, proceeded from the principle of bogie action, researched and developed, and finally proposed this patent.

Utility model content

The technical problem to be solved by this patent is: to provide a bogie that reduces the shaking of straddle monorail traffic vehicles. By arranging two pairs of stabilizing wheels on both sides of the bogie main frame, There are at least three points of force on the surface of the stabilizer wheel, guide wheel and track beam. The guide wheel and stabilizer wheel on the main frame of the bogie together form a stable stress system, which reduces the shaking of the straddle-type monorail traffic vehicle and makes up for the current situation. During the driving process of the vehicle, it is easy to occur the problem of large shaking caused by the torsion of the vehicle.

The technical solution adopted by this patent to solve its technical problems is:

A bogie for reducing shaking of a straddle-type monorail traffic vehicle is characterized in that: two stabilizing wheels are respectively arranged between the left and right guiding wheels of the bogie, and the guiding wheels on the same side are not coaxial with the stabilizing wheels. Three traveling axles are arranged on the bogie.

The bogie for reducing the shaking of straddle-type monorail traffic vehicles is characterized in that: the distance between the centers of the two guide wheels on the same side of the bogie is D ₃ The distance traveled during this period is D ₂ , the distance between the centers of the two stabilizer wheels on the same side of the bogie is D ₁ , and D ₁ satisfies the restrictive conditions: D ₂ <D ₁ <D ₃ .

The bogie for reducing the shaking of straddle-type monorail traffic vehicles is characterized in that: the stable wheels on the same side are arranged between the guide wheels on the same side, and are not arranged coaxially with the guide wheels on the same side; The distance traveled during the period when the track beam joint plate is empty is D ₄ , the center distance between the stabilizing wheel on the same side of the bogie and the adjacent guide wheel is D ₅ , and D ₅ satisfies the restrictive condition: D ₅ >D ₄ , and D ₅ >D ₂ .

The bogie for reducing the shaking of straddle-type monorail traffic vehicles is characterized in that: the distance between the centers of the two guide wheels on the same side of the bogie is D ₃ , and D ₃ = 1.2-3.2m; D ₂ is the distance traveled within the time t ₁ when passing through the seam plate and void occurs, and D ₂ =v×t ₁ ; where v is the speed of the train.

The bogie for reducing the shaking of straddle-type monorail traffic vehicles is characterized in that: the distance traveled by the train during the time _t2 when the guide wheels pass through the seam plate and is empty is _D4 , and D is taken as ₄ =v×t ₂ ; where v is the speed of the train.

The traveling wheel shaft on the bogie is characterized in that: the three traveling wheel shafts can be connected on both sides of the middle traveling wheel shaft, and the front and rear side traveling wheel shafts are symmetrically connected on one side, or the three traveling wheel shafts and the main frame of the bogie are all Double-sided connection.

Compared with the prior art, the beneficial effects of this patent are:

In this patent, two stabilizing arms with stabilizing wheels are respectively arranged on the left side and the right side of the main frame of the bogie. One stabilizing wheel is voided due to passing through the seam plate, and the rest of the stabilizing wheels are still in contact with the track beam, which ensures that the same-side stabilizing wheel and the opposite side guide wheel have at least three points of force on the surface of the track beam. This patent not only solves the problem that the existing bogie has only one pair of stable wheels, and when the vehicle passes through the joint of two adjacent track beams, the vehicle is prone to swaying. It also solves the problem that the existing bogie has only two stabilizing wheels on one side, and the stabilizing wheels on the same side are respectively coaxial with the corresponding guide wheels. When passing through the joints of two adjacent track beams, the vehicle is prone to torsional shaking .

In this patent, two stabilizing arms with stabilizing wheels are respectively arranged on the left side and the right side of the main frame of the bogie. The first guide wheel is out of space due to passing through the seam plate, and the other guide wheel and two stable wheels are still in contact with the track beam; then, the first guide wheel in the front is in contact with the track beam again, and the other stable wheels pass through The gap phenomenon occurs due to the seam plate, so as to ensure that there are at least three points of force on the two sides of the bogie and the surface of the track beam. It solves the problem that when the existing bogie passes through the joint of two adjacent track beams, the vehicle is prone to swaying in the air.

In this patent, two stabilizing arms with stabilizing wheels are arranged on the left and right sides of the bogie main frame, which increases the contact points between the bogie stabilizing wheels of straddle-type monorail traffic vehicles and the track beams, and avoids the need for existing bogies. The "chord effect" produced by the symmetrical arrangement of a stabilizer arm with stabilizer wheels on both sides increases the stability of the vehicle during driving and makes the force on the bogie more reasonable.

In this patent, two stabilizing arms with stabilizing wheels are respectively arranged on the left side and the right side of the main frame of the bogie, which increases the safety of the straddle-type monorail traffic vehicle during driving. Because the existing bogie has only one stabilizing wheel on each side, once a tire blows out, the stabilizing wheel will lose its function immediately, and the car body will lose its balance immediately. And the bogie of this patent has two stabilizing wheels on each side, even if a stabilizing wheel blows out, another stabilizing wheel on the same side can continue to work, so that the car body continues to keep running stably.

In this patent, two stabilizing arms with stabilizing wheels are respectively arranged on the left side and the right side of the main frame of the bogie, so that the straddle-type monorail traffic vehicle is not easy to shake due to the emptying of the stabilizing wheels during driving. The added stabilizer arm increases the resistance of the structure. The interaction between the main frame of the bogie, the guide wheel, the stabilizer arm and the stabilizer wheel constitutes a balanced stress system, which overcomes the shaking problem caused by a single stabilizer wheel and ensures the smoothness of the vehicle. and passenger comfort.

Description of drawings

Figure 1. Two pairs of three-axle running wheels and two pairs of stable wheel bogies. The middle running wheel shaft is connected on both sides, and the front and rear side running wheel shafts are symmetrically connected on one side.

Fig. 2 Top view of two pairs of three-axis running wheels with two pairs of stabilizing wheel bogies, middle running wheel axles connected on both sides, and front and rear running wheel axles symmetrically connected on one side

Fig. 3 Three-axle running wheels Two pairs of stable wheel bogies The middle running wheel shaft is connected on both sides, and the front and rear running wheel shafts are symmetrically connected on one side. Front view

Figure 4 The side view of the two pairs of three-axis running wheels with two pairs of stable wheel bogies, the middle running wheel shaft is connected on both sides, and the front and rear running wheel shafts are symmetrically connected on one side

Figure 5. Two pairs of stable wheel bogies with three-axis running wheels. The three running wheel axles of the bogie are connected to the main frame of the bogie on both sides.

Figure 6. Top view of three-axle running wheels, two pairs of stabilizing wheel bogies, three running wheel axles and bogie main frame connected on both sides.

Fig. 7 The front view of the bogie with two pairs of three-axis running wheels and two pairs of stabilizing wheels, the three running wheel axles are connected to the main frame of the bogie on both sides

Fig.8 Side view of three-axle running wheels, two pairs of stabilizer wheels bogie, three running wheel axles and bogie main frame connected on both sides

Those skilled in the art can easily understand the features indicated by numbers in the figure in combination with the following embodiments, so details are not repeated here.

Detailed ways

A bogie for reducing the shaking of a straddle-type monorail vehicle will be further described below in conjunction with the accompanying drawings. Before that, it should be pointed out that the embodiment described by the accompanying drawings is only for illustration and cannot be understood as a limitation of the present invention. .

Embodiment 1 A bogie with three traveling axles connected on both sides in the middle and one side connected symmetrically to the front and rear traveling axles

The bogie based on this patent is demonstrated in conjunction with Fig. 1 to Fig. 4 . Described a kind of three-axle traveling wheel bogie comprises bogie main frame 1; Three traveling wheel axles, comprise traveling wheel 2a, traveling wheel 2b, traveling wheel 2c; And four guide wheels, comprise guide wheel 3a, guide wheel 3b , guide wheel 3c, guide wheel 3d; With four stabilizing arms, comprise stabilizing arm 4a, stabilizing arm 4b, stabilizing arm 4c, stabilizing arm 4d, and four stabilizing wheels installed on stabilizing arm end, comprise stabilizing wheel 5a, Stabilizing wheel 5b, stabilizing wheel 5c and stabilizing wheel 5d.

Structurally speaking, the bogie main frame 1 is used as the main structure, and the traveling wheels are installed on the bogie main frame 1 . Among them, one side of the bearing of the traveling wheel 2a and traveling wheel 2c is symmetrically connected with the bogie main frame 1, and the two sides of the bearing of the traveling wheel 2b are connected with the bogie main frame 1, that is, the two sides of the middle traveling wheel axle of the three traveling wheel axles Connection, front and rear travel axles are symmetrically connected on one side. Guide wheel 3a, guide wheel 3b, guide wheel 3c, guide wheel 3d are respectively installed on the guide arm that each side end of bogie main frame 1 protrudes, has vehicle guiding effect. The stabilizing arm 4a and the stabilizing arm 4b are arranged on one side of the bogie main frame 1, arranged longitudinally along the track beam 6, and arranged symmetrically at the center between the guide wheel 3a and the guide wheel 3b. The arrangement of the stabilizing arm 4c and the stabilizing arm 4d on the other side can be arranged symmetrically with the stabilizing arm 4a and the stabilizing arm 4b, as shown in Fig. 2 to Fig. 4 after the arrangement is completed. It is not difficult to see that these four stabilizing wheels of the stabilizing wheel 5a, the stabilizing wheel 5b, the stabilizing wheel 5c and the stabilizing wheel 5d installed on the stabilizing arm are all arranged between the guide wheels, and are not connected with the guide wheels 3a, 3b. , The guide wheel 3c and the guide wheel 3d have a coaxial arrangement relationship.

From the perspective of force and function, the three-axis traveling wheel bogie has four stable wheels, the stable wheel 5a, the stable wheel 5b, the stable wheel 5c and the stable wheel 5d, between the stable wheel 5a and the stable wheel 5b, between the stable wheel 5c and the The arrangement distance D ₁ between the stabilizing wheels 5d is related to the one-off time t ₁ of a single stabilizing wheel and the vehicle speed v, the arrangement distance D ₁ must be greater than D ₂ =v×t ₁ , only in this way can at least two stabilizing wheels be maintained Keep in close contact with the track beam 6, that is, ensure that there are at least three points of application at any time, so as to prevent the vehicle from shaking due to the stabilizing wheel falling out of the air. Simultaneously, between the stabilizing wheel 5a and the stabilizing wheel 5b, the arrangement distance D1 between the stabilizing wheel 5c and the stabilizing wheel 5d will be less _than between the same side guiding wheel 3a and the guiding wheel 3b, between the guiding wheel 3c and the guiding wheel 3d Wheel center distance D ₃ . The center distance D ₅ between the stabilizing wheel 5b and the guiding wheel 3b is greater than the distance D ₄ traveled by the vehicle during the time t ₂ when the guiding wheel passes through the track beam seam plate and the vehicle is empty, and the stabilizing wheel 5a and the guiding wheel _The center distance D5 between 3a is greater _than the distance D2 traveled by the train during the time _t1 when the stabilizing wheels pass through the joint plate of the track girder and the empty space occurs. The basis for selecting the spacing between guide wheels and stabilizing wheels is as follows:

The distance traveled by the train during the period when the stabilizer wheels pass through the seam plate is D ₂ , the maximum speed of the monorail train is v, and v=80km/h, the time for the train bogie stabilizer wheel 5b to escape is t ₁ , take t ₁ =0.01s, then D ₂ =v×t ₁ =80/3.6×0.01=0.22m, the emptying time of train bogie guide wheel 3b is t ₂ , take t ₂ =0.01s, then D ₄ ＝v×t ₂ ＝80/3.6×0.01＝0.22m; the distance between the centers of the stabilizing wheels 5a and 5b is D ₁ , and the distance between the centers of the stabilizing wheels 5c and 5d is D ₁ . The distance between the centers of the two stabilizing wheels is less than the distance traveled by the train during the time when the stabilizing wheels pass through the seam plate and the space is lost, that is, when D ₁ < D ₂ , the two stabilizing wheels on one side of the bogie will simultaneously lose space Phenomenon, causing greater shaking of the compartment, so D ₁ > D ₂ should be satisfied. _In the same way, when the center distance D5 between the stabilizing wheel 5b and the guide wheel 3b is less than the distance _D4 that the vehicle passes through the track beam seam plate and takes place during the time _t2 when the guide wheel 3b is empty, the stabilizing wheel and the guide wheel The guide wheels are coaxial or very close to each other, which cannot form an effective torque resistance to resist the torsional shaking of the vehicle. When passing through the joint of the track beam, the left and right side of the front stabilizer wheel and the guide wheel will appear to be empty at the same time. If it is broken, the anti-torque moment disappears, and the torsional moment increases, causing the car to twist and shake. This torsional shaking is until the stable wheel contacts the track beam again to form a new force balance state, so D ₅ >D ₄ and D ₅ >D ₂ should be satisfied.

According to the above arrangement, when the stabilizing wheels and guiding wheels are not coaxial, two stabilizing wheels are arranged between the left and right guiding wheels of the bogie, which can ensure that the stabilizing wheels and guiding wheels on both sides of the bogie There are at least three points of force on the surface of the wheel and the track beam, which generate a torsional moment and form a balanced force-receiving body, and the straddle-type monorail traffic vehicle will not produce large swaying.

Embodiment 2 The three traveling axles and the main frame of the bogie are double-sided connected bogies

The bogie based on this patent is demonstrated in conjunction with Fig. 5 to Fig. 8 . Described a kind of three-axle traveling wheel bogie comprises bogie main frame 7; Three traveling wheel axles, comprise traveling wheel 8a, traveling wheel 8b, traveling wheel 8c; And four guide wheels, comprise guide wheel 9a, guide wheel 9b , guide wheel 9c, guide wheel 9d; And 4 stabilizing arms, comprise stabilizing arm 10a, stabilizing arm 10b, stabilizing arm 10c, stabilizing arm 10d, and four stabilizing wheels installed on stabilizing arm end, comprise stabilizing wheel 11a, Stabilizing wheel 11b, stabilizing wheel 11c and stabilizing wheel 11d.

Structurally speaking, the bogie main frame 7 is used as the main structure, and the traveling wheels are installed on the bogie main frame 7 . Wherein, both sides of the bearings of the traveling wheel 8a, the traveling wheel 8b and the traveling wheel 8c are connected with the bogie main frame 7, that is, the three traveling wheel axles are connected with the bogie main frame at both sides. Guide wheel 9a, guide wheel 9b, guide wheel 9c, guide wheel 9d are installed on the guide arm that each side end of bogie main frame 7 stretches out respectively, have vehicle guiding effect. The stabilizing arm 10a and the stabilizing arm 10b are arranged on one side of the bogie main frame 7, arranged longitudinally along the track beam 12, and arranged symmetrically at the center between the guide wheel 9a and the guide wheel 9b. The arrangement of the stabilizing arm 10c and the stabilizing arm 10d on the other side can be arranged symmetrically with the stabilizing arm 10a and the stabilizing arm 10b, as shown in Fig. 6 to Fig. 8 after the arrangement is completed. It is not difficult to see that the four stabilizing wheels 11a, 11b, 11c, and 11d installed on the stabilizing arm are all arranged between the guide wheels, and are not connected with the guide wheels 9a, 9b. , The guide wheel 9c and the guide wheel 9d have a coaxial arrangement relationship.

In terms of force and function, the three-axle road wheel bogie has four stable wheels 11a, 11b, 11c and 11d. Between the stable wheels 11a and 11b, between the stable wheels 11c and The arrangement distance D ₁ between the stabilizing wheels 11d is related to the one-off time t ₁ of a single stabilizing wheel and the vehicle speed v, the arrangement distance D ₁ must be greater than D ₂ =v×t ₁ , only in this way can at least two stabilizing wheels be maintained Keep in close contact with the track beam 6, that is, ensure that there are at least three points of application at any time, so as to prevent the vehicle from shaking due to the stabilizing wheel falling out of the air. Simultaneously, between the stabilizing wheel 11a and the stabilizing wheel 11b, between the stabilizing wheel 11c and the stabilizing wheel 11d, the arrangement distance D1 will be less _than between the same side guiding wheel 9a and the guiding wheel 9b, between the guiding wheel 9c and the guiding wheel 9d Wheel center distance D ₃ . The center distance D ₅ between the stabilizing wheel 11b and the guide wheel 9b is greater than the distance D ₄ traveled by the vehicle during the time t ₂ when the guide wheel passes through the track beam seam plate and the vehicle is empty, and the stabilizing wheel 11a and the guide wheel _The center distance D5 between 9a is greater _than the distance D2 traveled by the train during the time _t1 when the stabilizing wheels pass through the joint plate of the track girder and the space is lost. The basis for selecting the spacing between guide wheels and stabilizing wheels is as follows:

The distance traveled by the train during the period when the stabilizer wheels pass through the seam plate is D ₂ , the maximum speed of the monorail train is v, and v=80km/h, the time for the train bogie stabilizer wheel 11b to escape is t ₁ , take t ₁ =0.01s, then D ₂ =v×t ₁ =80/3.6×0.01=0.22m, the emptying time of train bogie guide wheel 9b is t ₂ , take t ₂ =0.01s, then D ₄ =v×t ₂ =80/3.6×0.01=0.22m; the distance between the center of the stabilizing wheel 11a and the stabilizing wheel 11b is D ₁ , the distance between the center of the stabilizing wheel 11c and the center of the stabilizing wheel 11d is D ₁ . The distance between the centers of the two stabilizing wheels is less than the distance traveled by the train during the time when the stabilizing wheels pass through the seam plate and the space is lost, that is, when D ₁ < D ₂ , the two stabilizing wheels on one side of the bogie will simultaneously lose space Phenomenon, causing greater shaking of the compartment, so D ₁ > D ₂ should be satisfied. _In the same way, when the center distance D5 between the stabilizing wheel 11b and the guide wheel 9b is less than the distance _D4 that the vehicle passes through the track beam seam plate and takes place during the time _t2 when the guide wheel 9b is empty, the stabilizing wheel and the guide wheel The guide wheels are coaxial or very close to each other, and cannot form an effective torque resistance to resist the torsional shaking of the vehicle. When passing through the joint of the track beam, the left and right side of the front stabilizer wheel and the guide wheel will appear to be empty at the same time. If it is broken, the anti-torque moment disappears, and the torsional moment increases, causing the car to twist and shake. This torsional shaking is until the stable wheel contacts the track beam again to form a new force balance state, so D ₅ >D ₄ and D ₅ >D ₂ should be satisfied.

According to the above arrangement, when the stabilizing wheels and guiding wheels are not coaxial, two stabilizing wheels are arranged between the left and right guiding wheels of the bogie, which can ensure that the stabilizing wheels and guiding wheels on both sides of the bogie There are at least three points of force on the surface of the wheel and the track beam, which generate a torsional moment and form a balanced force-receiving body, and the straddle-type monorail traffic vehicle will not produce large swaying.

The specific implementation method described above illustrates the purpose, technical solution and beneficial effects of this patent. It should be emphasized that the above descriptions are only specific examples of this patent and should not be used to limit the scope of this patent. Any modification, equivalent replacement or improvement made within the spirit and principles of this patent shall be included within the scope of protection of this patent.

Claims (6)

1. A bogie that reduces the shaking of a straddle type monorail traffic vehicle is characterized in that: two stabilizing wheels are respectively arranged between the left side and the right side guiding wheels of the bogie, and the guiding wheels on the same side are different from the stabilizing wheels axle, and three traveling axles are arranged on the bogie. 2. A bogie for reducing shaking of a straddle-type monorail traffic vehicle according to claim 1, characterized in that: the center distance between the two guide wheels on the same side of the bogie is D ₃ , and the train passes the track beam when the stabilizing wheel The distance traveled by the seam plate during this period is D ₂ , the distance between the centers of the two stable wheels on the same side of the bogie is D ₁ , and D ₁ satisfies the restrictive conditions: D ₂ <D ₁ <D ₃ . 3. A bogie for reducing shaking of a straddle-type monorail vehicle according to claim 1 or claim 2, characterized in that: the same-side stabilizing wheels are arranged between the same-side guide wheels, and are not guided with the same-side The wheels are arranged coaxially; the distance traveled by the train during the period when the guide wheels pass through the joint plate of the track beam and the space is empty is D ₄ , and the distance between the centers of the stabilizing wheels on the same side of the bogie and the adjacent guide wheels is D ₅ . D ₅ satisfies the restrictive conditions: D ₅ >D ₄ , and D ₅ >D ₂ . 4. A bogie for reducing sloshing of a straddle-type monorail vehicle according to claim 2, characterized in that: the distance between the centers of the two guide wheels on the same side of the bogie is D ₃ , and D ₃ =1.2-3.2 m; the distance traveled by the train during the time t ₁ when the stabilizer wheel passes through the seam plate is D ₂ , and D ₂ =v×t ₁ ; where v is the speed of the train. 5. A bogie for reducing the shaking of a straddle-type monorail vehicle according to claim 3, characterized in that: the distance traveled by the train during the time _t2 when the guide wheels pass through the seam plate and become empty is D ₄ , take D ₄ =v×t ₂ ; where v is the speed of the train. 6. The traveling wheel shaft on the bogie according to claim 1, characterized in that: the three traveling wheel shafts can be connected on both sides of the middle traveling wheel shaft, and the front and rear side traveling wheel shafts are symmetrically connected on one side, or the three traveling wheel shafts can be connected with The main frame of the bogie is connected on both sides.