CN111301466A - Transverse swing control method for bogie with low power action of wheel rail - Google Patents
Transverse swing control method for bogie with low power action of wheel rail Download PDFInfo
- Publication number
- CN111301466A CN111301466A CN201811508461.4A CN201811508461A CN111301466A CN 111301466 A CN111301466 A CN 111301466A CN 201811508461 A CN201811508461 A CN 201811508461A CN 111301466 A CN111301466 A CN 111301466A
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- Prior art keywords
- spherical
- bogie
- side frames
- seats
- positioning seats
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
- B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/02—Arrangements permitting limited transverse relative movements between vehicle underframe or bolster and bogie; Connections between underframes and bogies
- B61F5/04—Bolster supports or mountings
- B61F5/08—Bolster supports or mountings incorporating rubber springs
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B61—RAILWAYS
- B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
- B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
- B61F5/50—Other details
Abstract
A method for controlling the transverse swing of a wheel-track low-power bogie includes installing spherical positioning seats on the installation surfaces of the inner cavities of lower chords of two side frames of the wheel-track low-power bogie which are arranged in parallel, respectively, arranging the spherical positioning seats transversely and symmetrically along the side frames, and controlling the transverse swing of the side frames by the two spherical positioning seats, wherein the spherical centers of the spherical positioning seats are located in the longitudinal direction of the side frames, namely in the central plane along the running direction of a vehicle. The invention effectively controls the lateral swing of the side frame of the railway wagon through the two spherical positioning seats, has higher positioning reliability and can solve the problem of positioning reliability of the swing device in the prior art.
Description
Technical Field
The invention relates to a method for manufacturing a part of a side frame of a railway wagon bogie, in particular to a method for controlling the transverse swing of the bogie under the action of low power of a wheel rail, which can effectively control the transverse swing of the side frame; belongs to the technical field of railway wagon manufacturing.
Background art:
with the development of heavy-duty technology of railway freight cars, increasing the axle weight of freight cars has become one of the main trends in the development of heavy-duty freight cars. The increase of the axle weight of the wagon can greatly improve the transportation efficiency of the wagon, but the action of dynamic action force between the wheel rails is also greatly increased. Therefore, the reduction of low power of the wheel rail of the railway freight car bogie becomes one of the main targets of the development of the heavy-duty freight car bogie.
Theoretical studies show that (Shenshiyun, research on the dynamic performance of a low-power truck bogie, university of southwest traffic, journal of 1991, No. 1), the reduction of the unsprung mass of the bogie is one of the main measures for effectively reducing the dynamic action of the wheel rail. For the traditional three-piece bogie, the rubber elastic element is added between the side frame and the bearing saddle, so that the unsprung mass of the bogie can be greatly reduced, and the three-piece low-power truck bogie becomes one of the main technical characteristics. However, the provision of the rubber elastic member releases the rolling motion of the side frame. At high truck speeds, if this rolling motion of the sideframes is not effectively controlled, the truck will experience operational stability problems.
The prior art bogie generally solves the problem by providing a lateral swing control mechanism between the side frames. Currently, the bogies that employ side frame sway control technology on low-end trucks are mainly DZ2 and DZ5 type bogies. As shown in figure 1, the lower swing device of the existing bogie mainly comprises a spring supporting plate 201, a swing seat 202, a swing support 203 and side frames which form a transverse swing control mechanism together, so that lower side frame swing stiffness is realized, diamond deflection resistant stiffness of the two side frames of the bogie and low torsional stiffness required by adapting to line distortion are provided by using the characteristics of the spring supporting plate, and the advantages of good load balancing performance, high critical speed and excellent transverse performance of the traditional three-piece type are kept while the dynamic action of wheel tracks is reduced. However, there are some problems with the side frame lateral swing down device, mainly:
1) the positioning reliability is poor.
The rocking seat 202 and the rocking seat support 203 of the scheme are positioned by matching two cylindrical surfaces, and have larger radius difference. Although the positioning mode can realize the lower swing rigidity of the side frame, and achieve the purposes of improving the critical speed of operation and improving the transverse performance of the vehicle, because the swing seat and the swing seat support have the radius difference, when the swing seat is subjected to larger transverse disturbance from a line or passes through a curve, the swing seat 202 and the swing seat support 203 generate transverse dislocation, and the original normal state can not be restored and maintained due to the mutual friction between the two. As a result, the bogie will run in a non-normal splayed state on the two side frames for a long time, causing the rolling bearing device to bear additional transverse force, resulting in a series of problems such as rapid temperature rise and accelerated wear of the bearing device. The presence of this problem shortens the service life of the bearing, leading to an increase in operational and maintenance costs.
2) Maintenance costs of the swing seat 202 and the swing seat support 203 are high
The mutual rotation and sliding between the cylindrical surfaces of the rocking base 202 and the rocking base support 203 inevitably causes a wear phenomenon. After the abrasion reaches a certain limit, the repair is difficult, and the whole body must be replaced, so that the maintenance cost is high.
A related patent was found, and the technology adopted by the above-mentioned DZ2 and DZ5 type bogies is "axle box suspension swing type bogie for railway freight cars" published under patent No. CN 102490751. However, this patent is deficient in lateral swing control of the side frame and has yet to be further investigated.
Disclosure of Invention
The invention aims to provide a novel lateral swing control device for a side frame of a railway wagon bogie, aiming at the problems of unstable positioning and inconvenient maintenance of the lateral swing control of the side frame of the existing railway wagon bogie.
In order to achieve the purpose, the invention provides a method for controlling the transverse swing of a wheel-rail low-power-action bogie, wherein spherical positioning seats are respectively installed on installation surfaces of inner cavities of lower chords of two parallel side frames of the wheel-rail low-power-action bogie, the spherical positioning seats are symmetrically arranged along the transverse direction of the side frames, the spherical centers of the spherical positioning seats are positioned in the longitudinal direction of the side frames, namely in a central plane along the running direction of a vehicle, and the transverse swing of the side frames is controlled through the two spherical positioning seats.
Furthermore, two spherical positioning seats arranged on the same side frame are respectively provided with a spring bearing seat, the spring bearing seats are provided with two spherical positioning holes with downward openings, and spherical wear-resistant liners are arranged in the spherical positioning holes.
Furthermore, the outer diameter of the spherical positioning seat is the same as the inner diameter of the spherical wear-resistant liner; the outer diameter of the spherical wear-resistant liner is the same as the inner diameter of the positioning hole in the spring bearing seat.
Further, the spring bearing seat is positioned and connected with the lower plane of the end part of the spring supporting plate through the bearing plane at the top of the spring bearing seat.
Furthermore, the spring supporting plate, the two spring bearing seats and the spherical wear-resistant liners matched with the two spring bearing seats form a whole, and the spring supporting plate, the two side frames and the two pairs of spherical positioning seats matched with the two side frames form a transverse swinging mechanism together.
Furthermore, the rotation center of the transverse swinging mechanism is always positioned on the central line formed by the spherical centers of each pair of spherical positioning seats.
The invention has the advantages that:
the bogie adopts the side frame transverse swing control device related by the invention. Meanwhile, a splayed rubber elastic pad (105) is arranged between the bearing saddle (104) and the side frame assembly (106). Its advantage does:
1) the bogie adopting the side frame transverse swing control device can improve the reliability of the bogie and reduce the application and maintenance cost.
2) The splayed rubber pad is adopted in the first system, so that the unsprung mass can be greatly reduced, and the purpose of reducing the dynamic acting force of the wheel track is achieved. The prior art adopts a scheme of jointly positioning a conical rubber spring and a rubber shear plate, and aims to further reduce the swing stiffness of a side frame by utilizing the low swing stiffness of the conical rubber spring. However, the invention is mainly applied to heavy-duty trucks, and the splayed rubber pad is adopted, so that the side rolling motion of the side frame can be better inhibited, and the critical speed of the side frame can be properly reduced, thereby further improving the stress condition of the bearing and the rubber element and achieving the purpose of reducing the application cost.
Drawings
FIG. 1 is a schematic view of the structural assembly of a prior art truck side frame lateral swing control device;
FIG. 2 is a schematic view of the structural assembly of the sideframe lateral swing control apparatus according to the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
FIG. 4 is a three-dimensional schematic view of the structural assembly of a sideframe lateral swing control apparatus according to the present invention;
fig. 5 is a three-dimensional schematic diagram of the structural assembly of the low power action bogie of the wheel track according to the invention.
Detailed Description
The invention is further illustrated with reference to the accompanying drawings and specific embodiments.
Example one
As shown in fig. 2-4, the invention relates to a novel wheel-track low-power-action bogie comprising the side frame transverse swing control device, which comprises a side frame transverse swing control device (101), a wheel pair (102), a rolling bearing device (103), a bearing saddle (104), a splayed rubber elastic pad (105), a side frame assembly (106), a swing bolster assembly (107), a central suspension vibration damping device (108), a normally-contacted elastic side bearing (109) and a foundation brake device (110).
The side frame swing control device comprises a side frame (1), a spring supporting plate (2), a spring bearing seat (3), a spherical wear-resistant liner (4) and a spherical positioning seat (5).
The two spherical positioning seats (5) are arranged on the mounting surfaces of the inner cavities of the lower chords of the central boxes of the two side frames (1) which are arranged in parallel, are symmetrically arranged along the transverse direction (the horizontal direction vertical to the running direction of the vehicle) of the side frames, and the spherical centers of the spherical positioning seats are positioned in the central plane of the longitudinal direction (the running direction of the vehicle) of the side frames (1).
A spring bearing seat (3) is arranged above two spherical positioning seats (5) arranged on the same side frame, two spherical positioning holes with downward openings are arranged on the spring bearing seat (3), and spherical wear-resistant liners (4) are arranged in the spherical positioning holes. Wherein, the outer diameter of the spherical positioning seat (5) is the same as the inner diameter of the spherical wear-resistant liner (4); the outer diameter of the spherical wear-resistant liner (4) is the same as the inner diameter of the positioning hole in the spring bearing seat (3).
The two spring bearing seats (3) are positioned and connected with the lower plane of the end part of the spring supporting plate (2) through the bearing plane at the top part of the two spring bearing seats.
Particularly, a spring supporting plate (2), two spring bearing seats (3) and spherical wear-resistant liners (4) matched with the spring supporting plate form a whole, and the spring supporting plate, the two side frames (1) and two pairs of spherical positioning seats (5) matched with the side frames form a transverse swinging mechanism together. The rotation center of the swing mechanism is always positioned on the central line formed by the spherical centers of each pair of spherical positioning seats (5).
The above listed embodiments are only for clear and complete description of the technical solution of the present invention with reference to the accompanying drawings; it is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment can be seen that the invention relates to a method for controlling the transverse swing of a wheel-track low-power action bogie, wherein spherical positioning seats are respectively installed on installation surfaces of inner cavities of lower chords of two parallel side frames of the wheel-track low-power action bogie, the spherical positioning seats are symmetrically arranged along the transverse direction of the side frames, the spherical centers of the spherical positioning seats are positioned in the longitudinal direction of the side frames, namely, in a central plane along the running direction of a vehicle, and the transverse swing of the side frames is controlled through the two spherical positioning seats.
Furthermore, two spherical positioning seats arranged on the same side frame are respectively provided with a spring bearing seat, the spring bearing seats are provided with two spherical positioning holes with downward openings, and spherical wear-resistant liners are arranged in the spherical positioning holes.
Furthermore, the outer diameter of the spherical positioning seat is the same as the inner diameter of the spherical wear-resistant liner; the outer diameter of the spherical wear-resistant liner is the same as the inner diameter of the positioning hole in the spring bearing seat.
Further, the spring bearing seat is positioned and connected with the lower plane of the end part of the spring supporting plate through the bearing plane at the top of the spring bearing seat.
Furthermore, the spring supporting plate, the two spring bearing seats and the spherical wear-resistant liners matched with the two spring bearing seats form a whole, and the spring supporting plate, the two side frames and the two pairs of spherical positioning seats matched with the two side frames form a transverse swinging mechanism together.
Furthermore, the rotation center of the transverse swinging mechanism is always positioned on the central line formed by the spherical centers of each pair of spherical positioning seats.
The side frame transverse swing control method has the advantages that:
the bogie adopts the side frame lateral swing control device related to the invention/utility model. Meanwhile, a splayed rubber elastic pad (105) is arranged between the bearing saddle (104) and the side frame assembly (106). Its advantage does:
1) the bogie adopting the side frame transverse swing control device can improve the reliability of the bogie and reduce the application and maintenance cost.
2) The splayed rubber pad is adopted in the first system, so that the unsprung mass can be greatly reduced, and the purpose of reducing the dynamic acting force of the wheel track is achieved. The prior art adopts a scheme of jointly positioning a conical rubber spring and a rubber shear plate, and aims to further reduce the swing stiffness of a side frame by utilizing the low swing stiffness of the conical rubber spring. However, the present invention/utility model is mainly applied to heavy goods vehicles, and the splayed rubber pad is adopted, so that the side rolling motion of the side frame can be better inhibited, and the critical speed of the side frame can be properly reduced, thereby further improving the stress condition of the bearing and the rubber element and achieving the purpose of reducing the application cost.
The transverse swing of the side frame can reduce the transverse rigidity of a central suspension system of the bogie, thereby achieving the purpose of improving the critical speed, and the critical speed of the bogie in the prior art can reach over 160 km/h. However, as the swing angle of the side frame increases, the lateral force applied to the rolling bearing device increases correspondingly, thereby affecting the service life of the bearing. However, for a heavy-load bogie, the bogie usually runs at about 100km/h, and the significance of an overlarge running critical speed is not large. On the premise of meeting the requirement of the running speed stability, the invention can increase the side rolling rigidity of the side frame by properly increasing the friction coefficient of the spherical wear-resistant liner (4) and inhibit the side rolling angle, thereby achieving the purpose of improving the stress of the rolling bearing device and the rubber elastic element, prolonging the service life of the bearing and the rubber elastic element and reducing the application cost.
Claims (6)
1. A transverse swing control method of a bogie with a low power action of a wheel rail is characterized by comprising the following steps: spherical positioning seats are respectively installed on installation surfaces of central frames and inner cavities of lower chords of two side frames of the bogie with the low power action of the wheel track, the spherical positioning seats are transversely and symmetrically arranged along the side frames, the spherical centers of the spherical positioning seats are located in the longitudinal direction of the side frames, namely in the central plane along the running direction of a vehicle, and the transverse swinging of the side frames is controlled through the two spherical positioning seats.
2. The method of claim 1, wherein the step of controlling lateral sway of the wheeltrack low-power-effect bogie comprises: two spherical positioning seats arranged on the same side frame are respectively provided with a spring bearing seat, the spring bearing seats are provided with two spherical positioning holes with downward openings, and spherical wear-resistant liners are arranged in the spherical positioning holes.
3. The method of claim 1, wherein the step of controlling lateral sway of the wheeltrack low-power-effect bogie comprises: the outer diameter of the spherical positioning seat is the same as the inner diameter of the spherical wear-resistant liner; the outer diameter of the spherical wear-resistant liner is the same as the inner diameter of the positioning hole in the spring bearing seat.
4. The method of claim 3, wherein the step of controlling lateral sway of the wheeltrack low-power-effect bogie comprises: the spring bearing seat is connected with the lower plane of the end part of the spring supporting plate in a positioning way through the bearing plane at the top of the spring bearing seat.
5. The method of claim 1, wherein the step of controlling lateral sway of the wheeltrack low-power-effect bogie comprises: the spring supporting plate, the two spring bearing seats and the spherical wear-resistant liners matched with the two spring bearing seats form a whole, and the spring supporting plate, the two side frames and the two pairs of spherical positioning seats matched with the two side frames form a transverse swinging mechanism together.
6. The method of claim 1, wherein the step of controlling lateral sway of the wheeltrack low-power-effect bogie comprises: the rotation center of the transverse swing mechanism is always positioned on the central line formed by the spherical centers of each pair of spherical positioning seats.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508461.4A CN111301466A (en) | 2018-12-11 | 2018-12-11 | Transverse swing control method for bogie with low power action of wheel rail |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811508461.4A CN111301466A (en) | 2018-12-11 | 2018-12-11 | Transverse swing control method for bogie with low power action of wheel rail |
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| Publication Number | Publication Date |
|---|---|
| CN111301466A true CN111301466A (en) | 2020-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811508461.4A Pending CN111301466A (en) | 2018-12-11 | 2018-12-11 | Transverse swing control method for bogie with low power action of wheel rail |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815669A (en) * | 2021-11-01 | 2021-12-21 | 中车长春轨道客车股份有限公司 | Bogie adopting carbon fiber material framework |
-
2018
- 2018-12-11 CN CN201811508461.4A patent/CN111301466A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113815669A (en) * | 2021-11-01 | 2021-12-21 | 中车长春轨道客车股份有限公司 | Bogie adopting carbon fiber material framework |
| CN113815669B (en) * | 2021-11-01 | 2023-08-22 | 中车长春轨道客车股份有限公司 | Bogie adopting carbon fiber material framework |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200619 |
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| WD01 | Invention patent application deemed withdrawn after publication |