CN110758450B - Traction pull rod buffer of medium-low speed maglev train - Google Patents
Traction pull rod buffer of medium-low speed maglev train Download PDFInfo
- Publication number
- CN110758450B CN110758450B CN201911211319.8A CN201911211319A CN110758450B CN 110758450 B CN110758450 B CN 110758450B CN 201911211319 A CN201911211319 A CN 201911211319A CN 110758450 B CN110758450 B CN 110758450B
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- Prior art keywords
- buffer
- mounting seat
- traction
- traction rod
- rod
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61G—COUPLINGS; DRAUGHT AND BUFFING APPLIANCES
- B61G9/00—Draw-gear
- B61G9/04—Draw-gear combined with buffing appliances
- B61G9/06—Draw-gear combined with buffing appliances with rubber springs
Abstract
The invention discloses a traction pull rod buffer of a medium-low speed maglev train, which comprises a traction rod, a pin shaft bolt, a rubber spring, a linear ball bearing, a buffer mounting seat, a belleville spring, a guide rod, a traction rod mounting seat and a traction rod end, wherein the traction rod is connected with the end of the traction rod end, the other end of the traction rod end is connected with the traction rod mounting seat through the pin shaft bolt, the end of the guide rod is connected with the traction rod mounting seat, the other end of the guide rod penetrates through the buffer mounting seat to be connected with the belleville spring, the rubber spring is positioned between the buffer mounting seat and the traction rod mounting seat, and the linear ball bearing is connected with the buffer mounting seat and is.
Description
Technical Field
The invention belongs to the technical field of medium-low speed maglev trains, and particularly relates to a traction pull rod buffer of a medium-low speed maglev train.
Background
The medium-low speed maglev train is a novel rail transit train system, and the medium-low speed maglev train depends on electromagnetic force to realize suspension and guidance, runs by driving of a linear motor, has no influence of wheel rail adhesion, has the advantages of strong climbing capability, low noise and small turning radius, has better economy, comfort and stability, and is very suitable for intercity traffic. At present, medium-low speed magnetic levitation transportation is developing vigorously in China, and has huge advantages and wide application prospects.
The prior art (application number: CN102991519B) discloses a running mechanism of a medium-low speed maglev vehicle, and the prior art (application number: CN102416966A) discloses a connecting device of a middle sliding table of a maglev vehicle. At present, the suspension frame of the medium-low speed maglev train has two forms of an empty spring end arrangement and an empty spring middle arrangement, and no matter which structure is adopted, due to the existence of an air spring-sliding table suspension system, a vehicle body has a vertical height difference relative to the suspension frame, so that a traction rod which is connected with the sliding table and the suspension frame and transmits longitudinal force has an inclination angle. When longitudinal force transmitted by the traction rod in the starting acceleration stage and the braking deceleration stage of the medium-low speed maglev train has longitudinal and vertical component forces, the nod motion of the suspension frame can be caused. In addition, the traction rod mounting seat is directly connected with the suspension frame through screws, the suspension frame is of an aluminum alloy structure with strong toughness and crisp texture, and the bolt connection area has structural fatigue risk when the suspension frame is continuously subjected to component force impact action of the traction rod. Therefore, the draw bar structure has great influence on the suspension stability, the running stability and the suspension frame structure safety of the medium-low speed maglev train, and the improvement design of the existing technical scheme is necessary to avoid the influence of direct rigid impact.
Disclosure of Invention
The invention aims to solve the problems and provides a traction pull rod buffer of a medium-low speed maglev train, which is arranged between the end head at one side of a traction rod and a longitudinal beam of a suspension frame, provides certain elasticity and damping, can effectively relieve the rigid impact at the traction rod, and improves the suspension stability, the running stability and the suspension frame structure safety of the medium-low speed maglev train.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a well low-speed maglev train pulls pull rod buffer, including the traction lever, round pin axle bolt, rubber spring, linear ball bearing, the buffer mount pad, belleville spring, the guide bar, traction lever mount pad and traction lever end, the traction lever links to each other with the tip of traction lever end, the other end at traction lever end links to each other with the traction lever mount pad through round pin axle bolt, the tip of guide bar links to each other with the traction lever mount pad, the other end of guide bar passes the buffer mount pad and links to each other with belleville spring, rubber spring is located between buffer mount pad and the traction lever mount pad, linear ball bearing links to each other and the cover is established on the guide bar with the.
Preferably, the traction rod mounting seat comprises a traction rod mounting seat plate and two connection blocks of the traction rod mounting seat, the two connection blocks of the traction rod mounting seat are distributed on the same surface of the traction rod mounting seat plate, a through hole in the end of a traction rod is formed in the end of the traction rod, a connection block through hole is formed in the connection block of the traction rod mounting seat, the end with the through hole in the end of the traction rod is located between the connection blocks of the adjacent traction rod mounting seats, and a pin bolt sequentially penetrates through the through hole in the connection block and the through hole in the end of the traction.
Preferably, the traction rod mounting seat plate is provided with four mounting seat plate through holes, the four mounting seat plate through holes are uniformly and symmetrically distributed on the mounting seat plate, and the end part of the guide rod penetrates through the mounting seat plate through holes.
Preferably, the buffer mount pad includes buffer installation bedplate, buffer installation bedplate backup pad and buffer installation bedplate gusset, and buffer installation bedplate gusset is the triangle-shaped structure and links firmly with buffer installation bedplate, and buffer installation bedplate gusset links firmly with buffer installation bedplate, and buffer installation bedplate is the bending structure of "Z" font, and buffer installation bedplate backup pad and buffer installation bedplate gusset lie in buffer installation bedplate with one side and parallel.
Preferably, be equipped with buffer installation seat plate hole on the buffer installation seat plate, the distribution that the quantity of buffer installation seat plate hole is four and symmetry is on buffer installation seat plate, and linear ball bearing is located inside buffer installation seat plate hole, and linear ball bearing is worn to locate by the guide bar.
Preferably, the end of the guide rod is provided with a slotted nut and a guide rod hole, a cotter pin penetrates through the guide rod hole, the slotted nut is sleeved at the end of the guide rod, the disc spring is sleeved on the guide rod, one end of the disc spring is attached to the linear ball bearing through a flat washer, and the other end of the disc spring is attached to the slotted nut through a flat washer.
Preferably, a rubber spring through hole is formed in the middle of the rubber spring, and a bolt penetrates through the rubber spring through hole to fixedly connect the rubber spring with the buffer mounting seat.
Preferably, the number of the guide rods is four, and the guide rods are uniformly arranged between the buffer mounting seat and the traction rod mounting seat in a penetrating mode.
The invention has the beneficial effects that:
1. the traction pull rod buffer of the medium-low speed maglev train is positioned at the connecting part of the longitudinal traction rod and the longitudinal beam of the suspension frame of the medium-low speed maglev train, can provide a certain buffering effect in the starting acceleration and braking deceleration stages of the train and under the condition that the train is subjected to sudden longitudinal impact, prevents the rigid impact between a train body and the suspension frame, and improves the stability, the stability and the safety of the medium-low speed maglev train.
2. The invention provides the rubber spring and the disc spring for bidirectional buffering, so that the impact energy in the longitudinal front direction and the longitudinal rear direction can be relieved, and the universal shock absorber has universality.
3. The invention has simple and exquisite structure, small occupied space and light weight, and is very suitable for medium and low speed maglev trains with strict requirements on weight and installation space.
4. The invention has the advantages of common parts, firmness, durability, quick installation and disassembly, contribution to the maintenance of products and very high engineering application value.
Drawings
FIG. 1 is a schematic structural diagram of a traction rod buffer of a medium-low speed maglev train according to the present invention;
FIG. 2 is a schematic top view of the present invention;
FIG. 3 is a schematic illustration of the belleville spring installation of the present invention;
fig. 4 is a schematic view of the rubber spring attachment of the present invention.
Description of reference numerals: 1. a draw bar; 2. a pin bolt; 3. a rubber spring; 4. a linear ball bearing; 5. a bumper mount; 6. a disc spring; 7. a guide bar; 8. a draw bar mounting base; 9. the end of the traction rod.
Detailed Description
The invention is further described with reference to the following figures and specific embodiments:
as shown in fig. 1 to 4, the traction pull rod buffer of the medium-low speed maglev train provided by the invention comprises a traction rod 1, a pin bolt 2, a rubber spring 3, a linear ball bearing 4, a buffer mounting seat 5, a disc spring 6, a guide rod 7, a traction rod mounting seat 8 and a traction rod end 9, wherein the traction rod 1 is connected with the end of the traction rod end 9, the other end of the traction rod end 9 is connected with the traction rod mounting seat 8 through the pin bolt 2, the end of the guide rod 7 is connected with the traction rod mounting seat 8, the other end of the guide rod 7 passes through the buffer mounting seat 5 to be connected with the disc spring 6, the rubber spring 3 is positioned between the buffer mounting seat 5 and the traction rod mounting seat 8, and the linear ball bearing 4 is connected with the buffer mounting seat 5 and is sleeved on the guide rod 7.
In the present embodiment, the rubber spring 3, the linear ball bearing 4, the disc spring 6, and the guide rod 7 constitute a bidirectional damper.
The traction rod mounting seat 8 comprises a traction rod mounting seat plate and traction rod mounting seat connecting blocks, the number of the traction rod mounting seat connecting blocks is two, the two traction rod mounting seat connecting blocks are distributed on the same surface of the traction rod mounting seat plate, a traction rod end through hole is formed in the end portion of a traction rod end 9, a connecting block through hole is formed in each traction rod mounting seat connecting block, the end portion with the traction rod end through hole in each traction rod end 9 is located between the adjacent traction rod mounting seat connecting blocks, and a pin bolt 2 sequentially penetrates through the connecting block through holes and the traction rod end through holes to enable the. The traction rod head 9 and the traction rod mounting seat 8 can rotate relatively.
The traction rod mounting base plate is provided with four mounting base plate through holes, the four mounting base plate through holes are evenly and symmetrically distributed on the mounting base plate, and the end part of the guide rod 7 penetrates through the mounting base plate through holes.
Be equipped with buffer mount base plate hole on the buffer mount base plate, the distribution that the quantity of buffer mount base plate hole is four and symmetry is on buffer mount base plate, and linear ball bearing 4 is located inside buffer mount base plate hole, and linear ball bearing 4 is worn to locate by guide bar 7.
The guide rods 7 are four in number and uniformly penetrate between the buffer mounting seat 5 and the traction rod mounting seat 8.
In this embodiment, the number of the buffer mounting plate holes is four and the buffer mounting plate holes are uniformly distributed on the buffer mounting plate. One end of the guide rod 7 penetrates through the through hole of the mounting seat plate and is fastened with the traction rod mounting seat 8 through a flat washer, a spring washer and a nut. The other end is connected with the inner side and the outer side of the buffer mounting seat 5 through a linear ball bearing 4 and a disc spring 6 respectively.
The end part of the guide rod 7 is provided with a slotted nut and a guide rod hole, a cotter pin penetrates through the guide rod hole, the slotted nut is sleeved at the end part of the guide rod 7, the disc spring 6 is sleeved on the guide rod 7, one end of the disc spring 6 is attached to the linear ball bearing 4 through a flat washer, and the other end of the disc spring 6 is attached to the slotted nut through the flat washer. The end part of the guide rod 7 is provided with a guide rod hole and a split pin, the slotted nut is provided with a slotted nut hole, the slotted nut is sleeved at the end part of the guide rod 7, and the split pin penetrates through the slotted nut hole and the guide rod hole to prevent the slotted nut from loosening.
The linear ball bearing 4 is fixed with the inner side surface and the outer side surface of the buffer mounting seat 5 through a clamping ring, plays a role in positioning the guide rod 7 and can slide relative to the guide rod.
Rubber spring through-hole has been seted up at the middle part of rubber spring 3, and the bolt passes rubber spring through-hole and links firmly rubber spring 3 and buffer mount pad 5.
3 current maturation technology equipment on rubber spring, the rubber spring hole has been seted up at the middle part of rubber spring 3, and the rubber spring hole is countersunk head through-hole structure. Be equipped with buffer mount bedplate connecting hole on the buffer mount bedplate, when rubber spring 3 installed between buffer mount pad 5 and traction lever mount pad 8, the rubber spring hole was arranged for coaxial position with buffer mount pad version connecting hole, and the bolt passes rubber spring hole and buffer mount pad version connecting hole respectively simultaneously and links to each other rubber spring 3 and buffer mount pad 5. The buffer mounting seat 5 is fixed on an external suspension frame longitudinal beam through bolt connection, and the suspension frame longitudinal beam is the existing mature technology equipment.
When the medium-low speed maglev train is in a starting acceleration stage or the train body is longitudinally impacted, if the upper train body moves relative to the lower suspension frame, the traction rod 1 drives the traction rod mounting seat 8 and the guide rod to integrally move towards the buffer mounting seat 5, and at the moment, the rubber spring 3 is pressed to absorb energy. On the contrary, when the lower suspension frame of the medium-low speed maglev train moves relative to the upper train body, the suspension frame drives the buffer mounting seat 5, the guide rod 7 and the rubber spring 3 to integrally move towards the traction rod mounting seat, and the disc spring 6 and the rubber spring 3 are pressed together to absorb energy.
The buffer device disclosed by the invention has the advantages of simple structure and low manufacturing cost, can effectively reduce the longitudinal impact of the medium-low speed maglev train, is very convenient to mount and dismount, is beneficial to the maintenance and replacement of parts, and has higher reliability and applicability.
It will be appreciated by those of ordinary skill in the art that the embodiments described herein are intended to assist the reader in understanding the principles of the invention and are to be construed as being without limitation to such specifically recited embodiments and examples. Those skilled in the art can make various other specific changes and combinations based on the teachings of the present invention without departing from the spirit of the invention, and these changes and combinations are within the scope of the invention.
Claims (7)
1. The utility model provides a well low-speed maglev train pulls pull rod buffer which characterized in that: the traction rod type traction device comprises a traction rod (1), a pin bolt (2), a rubber spring (3), a linear ball bearing (4), a buffer mounting seat (5), a disc spring (6), a guide rod (7), a traction rod mounting seat (8) and a traction rod end (9), wherein the traction rod (1) is connected with the end of the traction rod end (9), the other end of the traction rod end (9) is connected with the traction rod mounting seat (8) through the pin bolt (2), the end of the guide rod (7) is connected with the traction rod mounting seat (8), the other end of the guide rod (7) penetrates through the buffer mounting seat (5) to be connected with the disc spring (6), the rubber spring (3) is located between the buffer mounting seat (5) and the traction rod mounting seat (8), and the linear ball bearing (4) is connected with the buffer mounting seat (5) and sleeved on the guide rod (7);
the traction rod mounting seat (8) comprises a traction rod mounting seat plate and a traction rod mounting seat connecting block, the number of the traction rod mounting seat connecting blocks is two, the two traction rod mounting seat connecting blocks are distributed on the same surface of the traction rod mounting seat plate, a traction rod end through hole is formed in the end part of a traction rod end (9), a connecting block through hole is formed in the traction rod mounting seat connecting block, the end part with the traction rod end through hole in the traction rod end (9) is located between the adjacent traction rod mounting seat connecting blocks, a pin bolt (2) sequentially penetrates through the connecting block through hole and the traction rod end through hole, and the traction rod end (.
2. The traction pull rod buffer of the medium-low speed magnetic-levitation train according to claim 1, characterized in that: the traction rod mounting base plate is provided with four mounting base plate through holes, the four mounting base plate through holes are evenly and symmetrically distributed on the mounting base plate, and the end part of the guide rod (7) penetrates through the mounting base plate through holes.
3. The traction pull rod buffer of the medium-low speed magnetic-levitation train according to claim 1, characterized in that: buffer mount pad (5) are including buffer installation bedplate, buffer mount pad and buffer mount pad gusset, and buffer mount pad gusset is the triangle-shaped structure and links firmly with buffer installation bedplate, and buffer mount pad gusset links firmly with buffer installation bedplate, and buffer installation bedplate is the bending structure of "Z" font, and buffer mount pad gusset lie in buffer installation bedplate with one side and parallel.
4. The traction pull rod buffer of the medium-low speed magnetic-levitation train as claimed in claim 3, wherein: be equipped with buffer mount pad hole on the buffer mount pad, the distribution that the quantity in buffer mount pad hole is four and symmetry is on buffer mount pad, and linear ball bearing (4) are located inside buffer mount pad hole, and linear ball bearing (4) are worn to locate by guide bar (7).
5. The traction pull rod buffer of the medium-low speed magnetic-levitation train according to claim 1, characterized in that: the end of guide bar (7) is equipped with slotted nut and guide bar hole, and the guide bar is downthehole to wear to be equipped with the split pin, and slotted nut overlaps the tip of establishing at guide bar (7), and belleville spring (6) cover is established on guide bar (7), and belleville spring (6) one end is passed through the plain washer and is laminated with linear ball bearing (4), and the other end of belleville spring (6) is passed through the plain washer and is connected with the slotted nut laminating.
6. The traction pull rod buffer of the medium-low speed magnetic-levitation train according to claim 1, characterized in that: a rubber spring through hole is formed in the middle of the rubber spring (3), and a bolt penetrates through the rubber spring through hole to fixedly connect the rubber spring (3) with the buffer mounting seat (5).
7. The traction pull rod buffer of the medium-low speed magnetic-levitation train according to claim 1, characterized in that: the number of the guide rods (7) is four, and the guide rods are uniformly arranged between the buffer mounting seat (5) and the traction rod mounting seat (8) in a penetrating mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911211319.8A CN110758450B (en) | 2019-12-02 | 2019-12-02 | Traction pull rod buffer of medium-low speed maglev train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911211319.8A CN110758450B (en) | 2019-12-02 | 2019-12-02 | Traction pull rod buffer of medium-low speed maglev train |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110758450A CN110758450A (en) | 2020-02-07 |
| CN110758450B true CN110758450B (en) | 2021-01-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911211319.8A Active CN110758450B (en) | 2019-12-02 | 2019-12-02 | Traction pull rod buffer of medium-low speed maglev train |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111038547A (en) * | 2019-12-31 | 2020-04-21 | 中铁磁浮科技（成都）有限公司 | Traction pull rod device with buffering function for medium-low speed magnetic levitation vehicle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070186740A1 (en) * | 2006-01-20 | 2007-08-16 | Steven Dreyer | Method and apparatus for forming and cutting vinyl tiles with rolled edges |
| CN100560413C (en) * | 2007-12-13 | 2009-11-18 | 西南交通大学 | A kind of elastic vibration reduction towing mechanism of track vehicle |
| CN101474585A (en) * | 2009-01-19 | 2009-07-08 | 北京博希格动力技术有限公司 | Spring oscillation damping pull rod of coal mill |
| CN101559396B (en) * | 2009-05-15 | 2012-08-29 | 江苏大学 | Triaxial vibration-decreasing/vibration-isolating platform of hammer crusher |
| CN101871505B (en) * | 2010-06-12 | 2012-07-04 | 江苏大学 | Positive and negative stiffness parallel three-translation vibration and impact isolation platform |
| CN202016480U (en) * | 2011-03-28 | 2011-10-26 | 南车株洲电力机车有限公司 | Draw gear for vehicle |
| CN102991519B (en) * | 2012-11-30 | 2016-09-07 | 常州西南交通大学轨道交通研究院 | The running mechanism of middle low speed magnetic suspension vehicle |
| CN103072591A (en) * | 2013-01-20 | 2013-05-01 | 西南交通大学 | Walking device of medium and low-speed magnetic levitation vehicle |
| CN106678267B (en) * | 2016-11-22 | 2018-08-14 | 常州大学 | A kind of combined shock absorber with three rank intrinsic frequencies |
| CN208393385U (en) * | 2018-07-03 | 2019-01-18 | 中铁一局集团电务工程有限公司 | A kind of wired reverse graft connector of city rail |
| CN209505376U (en) * | 2019-01-29 | 2019-10-18 | 北京旷视机器人技术有限公司 | Shock absorption buffering mechanism and mobile robot with it |
| CN110388406A (en) * | 2019-08-19 | 2019-10-29 | 同济大学 | Bearing-type mobile decoupling three-dimensional isolation support |
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