CN112810660A

CN112810660A - Driving mechanism of joint turnout

Info

Publication number: CN112810660A
Application number: CN202110253821.6A
Authority: CN
Inventors: 仵叔强; 李利军; 牛均宽; 张立学
Original assignee: China Railway Baoji Bridge Group Co Ltd
Current assignee: China Railway Baoji Bridge Group Co Ltd
Priority date: 2021-03-09
Filing date: 2021-03-09
Publication date: 2021-05-18

Abstract

A driving mechanism of a joint turnout is characterized in that a base of the driving mechanism is provided with five trolleys, a rotating shaft I, a rotating shaft II and a rotating shaft III are fixed on the base, the rotating shaft I, the rotating shaft II and the rotating shaft III are all positioned on the transverse central line of the base, and the rotating shaft II is positioned between the rotating shaft I and the rotating shaft III; the base is provided with a driven connecting rod, a driving connecting rod and a driving device; the head end of the driven connecting rod is connected with the rotating shaft II in a sliding and rotating mode, the head end of the driving connecting rod is connected with the rotating shaft III in a sliding and rotating mode, and the tail end of the driven connecting rod is connected with the middle of the driving connecting rod in a sliding and rotating mode; the driving arm of the driving device is hinged to the middle part of the driving connecting rod; the trolley I is hinged to the rotating shaft I, the trolley II and the trolley III are fixedly connected to the middle of the driven connecting rod, and the trolley IV and the trolley V are fixedly connected to the tail of the driving connecting rod. The invention has the advantages of high driving precision, high efficiency, large structural rigidity and long service life.

Description

Driving mechanism of joint turnout

Technical Field

The invention belongs to the technical field of joint turnouts, particularly relates to a joint turnout for a magnetic suspension traffic system or a straddle type traffic system, and particularly relates to a driving mechanism of the joint turnout.

Background

The closest prior art to the present invention is the invention patent of "single driving point joint switch (CN 103693075 a)" previously filed and granted by the applicant. The driving structure of the turnout is complex, the turnout is driven by a gear and a rack, the track of a trolley for mounting the gear is a non-arc line, the deviation between the actual traveling track and the theoretical track is large, the gear and the rack are difficult to mesh, and the reliability is poor.

Disclosure of Invention

The technical problems solved by the invention are as follows: provides a driving mechanism of a joint turnout, which overcomes the defects of the prior art.

The technical scheme adopted by the invention is as follows: a driving mechanism of a joint turnout comprises a base, wherein a trolley I, a trolley II, a trolley III, a trolley IV and a trolley V are arranged on the base; the trolley I is positioned on a sliding support arranged on the base, and the trolley II, the trolley III, the trolley IV and the trolley V are respectively positioned on corresponding switch tracks arranged on the base; the base is fixedly provided with a rotating shaft I, a rotating shaft II and a rotating shaft III, the rotating shaft I, the rotating shaft II and the rotating shaft III are all positioned on the transverse central line of the base, and the rotating shaft II is positioned between the rotating shaft I and the rotating shaft III; the base is provided with a driven connecting rod, a driving connecting rod and a driving device; the head end of the driven connecting rod is connected with the rotating shaft II in a sliding and rotating mode, and the head end of the driving connecting rod is connected with the rotating shaft III in a sliding and rotating mode; the tail end of the driven connecting rod is connected with the middle part of the driving connecting rod in a sliding and rotating way; the driving arm of the driving device is hinged to the middle part of the driving connecting rod; the trolley I is hinged to the rotating shaft I, the trolley II and the trolley III are fixedly connected to the middle of the driven connecting rod, and the trolley IV and the trolley V are fixedly connected to the tail of the driving connecting rod.

The head ends of the driven connecting rod and the driving connecting rod are respectively connected with the rotating shaft II and the rotating shaft III in a sliding and rotating mode through U-shaped grooves.

The head ends of the driven connecting rod and the driving connecting rod are respectively fixed with a U-shaped sliding block, and the U-shaped sliding blocks are respectively sleeved on the rotating shaft II and the rotating shaft III to form a sliding revolute pair.

The driven connecting rod is located below the trolley II and the trolley III, the driving connecting rod is located below the trolley III, the trolley IV and the trolley V, and the driven connecting rod is located above the driving connecting rod.

Compared with the prior art, the invention has the advantages and effects that:

1. the driving connecting rod and the driven connecting rod are integrally arranged, so that the structural rigidity is high, the service life is long, the defects that the gear and the rack need to be replaced periodically in the prior art are overcome, and the energy-saving, noise-reducing, safe and reliable characteristics are realized;

2. the driving point is arranged on the driving connecting rod, so that the action stroke is greatly reduced, the turning resistance and the longitudinal sliding resistance of the turnout beam are only required to be overcome in the turnout switching process, and compared with the prior art, the turnout driving device has higher driving precision and higher efficiency;

3. the driving device is directly connected with the driving connecting rod, the power source is more flexibly arranged, the driving device can be driven by a winch or an electric push rod, and the driving device is simple in structure, convenient to install and convenient for later maintenance;

4. the invention can be expanded and applied to various joint turnout devices, realizes the switching of single opening (left opening and right opening), split, single crossover and cross crossover, can be applied to the fields of straddle type monorail, tourist sightseeing light rail, magnetic suspension traffic and the like, and has universal applicability.

Drawings

Figure l is a perspective view of the structure of the present invention,

fig. 2 is a schematic structural view of the sliding and rotating pair of the present invention.

Figure 3 is a schematic perspective view of an example of application of the present invention,

figure 4 is a front view of the structure of an application example of the invention,

figure 5 is a schematic view of a straight line state of an example of application of the invention,

FIG. 6 is a schematic side view of an embodiment of the present invention.

Detailed Description

The invention is described in detail below with reference to figures 1, 2, 3, 4, 5, 6 and the detailed description.

A driving mechanism of a joint turnout comprises a base 10, wherein a trolley I5, a trolley II 6, a trolley III 7, a trolley IV 8 and a trolley V9 are arranged on the base 10; the trolley I5 is positioned on a sliding support 11 arranged on a base 10, and the trolley II 6, the trolley III 7, the trolley IV 8 and the trolley V9 are respectively positioned on corresponding switch tracks 12 arranged on the base 10; a rotating shaft I13, a rotating shaft II 14 and a rotating shaft III 15 are fixed on the base 10, the rotating shaft I13, the rotating shaft II 14 and the rotating shaft III 15 are all positioned on the transverse central line of the base 10, and the rotating shaft II 14 is positioned between the rotating shaft I13 and the rotating shaft III 15; a driven connecting rod 16, a driving connecting rod 17 and a driving device 18 are arranged on the base 10; the head end of the driven connecting rod 16 is connected with the rotating shaft II 14 in a sliding and rotating mode, and the head end of the driving connecting rod 17 is connected with the rotating shaft III 15 in a sliding and rotating mode; the tail end of the driven connecting rod 16 is connected with the middle part of the driving connecting rod 17 in a sliding and rotating way; the driving arm 19 of the driving device 18 is hinged at the middle part of the driving connecting rod 17; the trolley I5 is hinged to the rotating shaft I13, the trolley II 6 and the trolley III 7 are fixedly connected to the middle of the driven connecting rod 16, and the trolley IV 8 and the trolley V9 are fixedly connected to the tail of the driving connecting rod 17.

The driven connecting rod 16 is located below the trolley II 6 and the trolley III 7, the driving connecting rod 17 is located below the trolley III 7, the trolley IV 8 and the trolley V9, and the driven connecting rod 16 is located above the driving connecting rod 17.

In one embodiment, the head ends of the driven connecting rod 16 and the driving connecting rod 17 are slidably and rotatably connected with the rotating shafts II 14 and III 15 through U-shaped grooves respectively to form sliding rotating pairs.

In one embodiment, the driven connecting rod 16 and the driving connecting rod 17 are fixed with a "U" shaped slider 22 at the head ends, and the "U" shaped slider 22 is respectively sleeved on the revolving shaft ii 14 and the revolving shaft iii 15 to form a sliding rotation pair, so as to realize sliding and rotating connection.

In one embodiment, the end of the driven link 16 is hinged to a pin fixedly connected to the middle of the driving link 17 through a strip-shaped hole structure to form a sliding rotation pair, so as to realize sliding and rotating connection.

The invention is applied to the joint turnout consisting of a turnout beam I1, a turnout beam II 2, a turnout beam III 3 and a turnout beam IV 4; the head end of the turnout beam I1 is fixed on a trolley I5, the head and tail ends of the turnout beam II 2 are respectively fixed on a trolley II 6 and a trolley III 7, the head and tail ends of the turnout beam IV 4 are respectively fixed on a trolley IV 8 and a trolley V9, and the head end of the turnout beam II 2, the tail end of the turnout beam I1, the tail end of the turnout beam II 2, the head end of the turnout beam III 3 and the head end of the turnout beam IV 4 are mutually lapped and hinged through T-shaped shafts; the turnout beam has the transverse and vertical rotational freedom degrees, namely, the adjacent turnout beams form movable fit, namely, the turnout beams can do horizontal plane rotary motion around the T-shaped shaft and can also do vertical plane rotary motion around the T-shaped shaft.

A rotary seat 23 is fixed at the center of the front side of the trolley I5, and the rotary seat 23 is hinged on the rotary shaft I13. And the periphery of the trolley I5 is provided with an anti-bouncing device 25 fixed on the base 10, and a tongue pressing on the top surface of the anti-bouncing device 25 acts on the trolley I5 to prevent the trolley from bouncing. The anti-jump device 25 is prior art and will not be described herein.

The middle part of the driven connecting rod 16 is provided with a locking mechanism I20, and a locking pin shaft extending out of the locking mechanism I20 is inserted into a corresponding positioning hole arranged on the base 10 to realize the locking of the driven connecting rod 16. And the tail end of the turnout beam IV 4 is provided with a locking mechanism II 21, and a locking pin shaft extending out of the locking mechanism II 21 is inserted into a corresponding positioning hole arranged on the track beam to lock the turnout beam IV 4.

The switching principle is as follows: the driving device 18 drives the driving connecting rod 17 to move around the revolving shaft III 15 through the driving arm 19, and drives the driven connecting rod 16 to move around the revolving shaft II 14; the trolley IV 8 and the trolley V9 are driven by the driving connecting rod 17 to run according to a set switch track 12, and then the turnout beam IV 4 is driven by the trolley IV 8 and the trolley V9 to switch in place; the trolley II 6 and the trolley III 7 are driven by the driven connecting rod 16 to run according to a set switch track 12, and the turnout beam I1 and the turnout beam II 2 are driven by the trolley II 6 and the trolley III 7 to switch in place; the turnout beam III 3 is dragged in place through the turnout beam II 2 and the turnout beam IV 4, so that the broken lines formed by the four straight turnout beams are fitted into an approximate circular curve. The driving device 18 drives the turnout beam to move in place according to a given track, and then the locking mechanism I20 and the locking mechanism II 21 are started to lock the turnout.

During the switching process, a certain longitudinal displacement is generated between the turnout beam and the driven connecting rod 16 and between the turnout beam and the driving connecting rod 17. There are theoretically three ways to release this longitudinal displacement:

A. the T-shaped shaft is released in a sliding mode, the rotating shaft II and the rotating shaft III are fixed, so that when the turnout is in a straight line state, the gap between one end of a turnout beam III and an adjacent turnout beam is large, and the total length of the turnout at the straight line position is difficult to guarantee to be an integer.

B. Through the sliding release of the trolley and the connecting rod, the rotating shaft II and the rotating shaft III are fixed, so that the structure of the connecting part of the trolley and the connecting rod is complex, and the total length of the straight-line turnout is difficult to ensure to be an integer.

C. The sliding release is carried out from the rotating shaft II and the rotating shaft III, the structure is simple, and the total length of the straight-line turnout can be ensured to be an integer.

The invention adopts the sliding revolute pairs formed at the revolving shaft II and the revolving shaft III to realize sliding and rotating connection, and the longitudinal displacement generated between the turnout beam and the driven connecting rod 16 as well as the driving connecting rod 17 is released by sliding, so that the structure is simple and practical, and the total length of the straight turnout can be ensured to be an integer. In addition, in the switching process, the longitudinal displacement generated between the driven connecting rod 16 and the driving connecting rod 17 is formed in a mode of hinging through the strip-shaped holes, so that the sliding revolute pair release displacement is formed, and the method is simple and reliable.

The invention can be converted between a straight line state and a curve state according to the established requirement (as shown in figures 5 and 6), and the smooth and reliable passing of the vehicle is met. In practical application, simple change design can be carried out according to needs, various types such as single-opening (left-opening and right-opening) turnouts, split turnouts, single-crossover turnouts, cross-crossover turnouts and the like can be derived and designed, and lane changing and turning operation of a vehicle in a driving process and shunting of the vehicle in a base or a parking lot are realized. The method is mainly applied to a monorail traffic system and a medium-low speed magnetic levitation traffic system.

The above-mentioned embodiments are merely preferred embodiments of the present invention, which should not be construed as limiting the scope of the invention, and therefore all equivalent variations made by the following claims should be included in the scope of the invention.

Claims

1. A driving mechanism of joint turnout, which comprises a base (10), and is characterized in that: a trolley I (5), a trolley II (6), a trolley III (7), a trolley IV (8) and a trolley V (9) are arranged on the base (10); the trolley I (5) is positioned on a sliding support (11) arranged on a base (10), and the trolley II (6), the trolley III (7), the trolley IV (8) and the trolley V (9) are respectively positioned on corresponding switch tracks (12) arranged on the base (10); a rotating shaft I (13), a rotating shaft II (14) and a rotating shaft III (15) are fixed on the base (10), the rotating shaft I (13), the rotating shaft II (14) and the rotating shaft III (15) are all located on the transverse central line of the base (10), and the rotating shaft II (14) is located between the rotating shaft I (13) and the rotating shaft III (15); a driven connecting rod (16), a driving connecting rod (17) and a driving device (18) are arranged on the base (10); the head end of the driven connecting rod (16) is connected with the rotating shaft II (14) in a sliding and rotating mode, and the head end of the driving connecting rod (17) is connected with the rotating shaft III (15) in a sliding and rotating mode; the tail end of the driven connecting rod (16) is connected with the middle part of the driving connecting rod (17) in a sliding and rotating way; the driving arm (19) of the driving device (18) is hinged at the middle part of the driving connecting rod (17); the trolley I (5) is hinged to the rotating shaft I (13), the trolley II (6) and the trolley III (7) are fixedly connected to the middle of the driven connecting rod (16), and the trolley IV (8) and the trolley V (9) are fixedly connected to the tail of the driving connecting rod (17).

2. A drive mechanism for an articulated switch according to claim 1, characterized in that: the head ends of the driven connecting rod (16) and the driving connecting rod (17) are respectively connected with the rotating shaft II (14) and the rotating shaft III (15) in a sliding and rotating mode through U-shaped grooves.

3. A drive mechanism for an articulated switch according to claim 1, characterized in that: the head ends of the driven connecting rod (16) and the driving connecting rod (17) are respectively fixed with a U-shaped sliding block (22), and the U-shaped sliding blocks (22) are respectively sleeved on the rotating shaft II (14) and the rotating shaft III (15) to form sliding revolute pairs.

4. A driving mechanism of a joint switch according to claim 1, 2 or 3, wherein: driven connecting rod (16) are located the below of platform truck II (6), platform truck III (7), initiative connecting rod (17) are located the below of platform truck III (7), platform truck IV (8), platform truck V (9), and driven connecting rod (16) are located the top of initiative connecting rod (17).