A Link Guide Device for the Electrical Conversion Mechanism of Railway Turnouts

Abstract

The present invention relates to a connecting rod guiding device for an electric conversion mechanism of a railway switch, which comprises a base, insulating side plates, insulating roller wheels and adjusting pieces; an angle steel is fixedly installed at the bottom of the base in a matching manner and is fixedly installed at the bottom of the rail through the angle steel; an adjusting piece is also fixedly clamped between the bottom of the base and the top of the angle steel in a matching manner; there are a pair of insulating side plates, which are vertically and fixedly arranged on the middle section top surface of the base in a matching manner; the upper ends of the pair of insulating side plates are connected to each other through a second bolt assembly, and the lower ends are connected to each other through another second bolt assembly; the insulating roller wheels are hinged to the second bolt assemblies between the upper ends and the lower ends of the pair of insulating side plates in a matching manner. The structure of the present invention is simple and reasonable in design, convenient for maintenance and replacement, reduces the time cost of maintenance, and is safe, reliable and long in service life.

Description

Technical Field

[0001] The present invention relates to a guiding device, and more particularly to a connecting rod guiding device for a railway switch electric conversion mechanism. Background Art

[0002] The application of an electric conversion mechanism for driving a switch rail (or a stock rail) at multiple points with a single machine significantly reduces the number of conversion devices and the maintenance burden. The long connecting rod plays a crucial role in force transmission in this mechanism. When the electric conversion device drives a connecting rod mechanism with multiple points driven by a single machine, due to the large span of the long connecting rod, excessive deformation is likely to occur, and even jamming may occur, affecting the overall electric conversion of the switch and posing a great threat to the train operation safety. To solve the problem of excessive deformation of the long connecting rod under force, when the length of the long connecting rod of a single machine multiple-point driven switch rail mechanism exceeds 4m, a set of guiding and supporting devices needs to be arranged at certain intervals along the length direction of the connecting rod to ensure the stable and smooth operation of the long connecting rod.

[0003] In view of this, Chinese Patent CN202122190947.1 discloses a single machine multiple-point drive mechanism for railway switches, which relates to a structure of a connecting rod guiding device for a single machine multiple-point electric conversion mechanical mechanism. The guiding device is provided with a pair of crescent-shaped insulating blocks, which are fixed to the middle of the electric conversion connecting rod mechanism through fasteners such as bolts and nuts, and can effectively limit the large deformation of the long connecting rod in the horizontal and vertical directions. The guiding and supporting device is to set through holes on the insulating blocks, and the long connecting rod passes through the through holes to achieve the function of guiding and supporting. The insulating block in direct contact with the long connecting rod is a fixed structure, and there are the following problems:

[0004] (1) It is not convenient for installation and disassembly. The insulating block is a fixed structure. During installation, the insulating block needs to be sleeved on the long connecting rod for installation. During maintenance, the long connecting rod and this device need to be disassembled and assembled as a whole, and the time cost required is relatively high;

[0005] (2) The friction between the long connecting rod and the insulating block is sliding friction. This friction method will increase the running resistance of the entire connecting rod mechanism, thereby increasing the overall load of the electric conversion device and reducing the service life of the switch rail and the tie rod of the switch;

[0006] (3) When the electric conversion device drives a connecting rod mechanism with multiple points driven by a single machine, there is a certain contact angle between the long connecting rod and the insulating block, which is easy to form a higher pair; under the large friction force and concentrated load for a long time, the wear speed is accelerated, and it cannot play a good supporting role for the long connecting rod, and new insulating blocks need to be replaced regularly, resulting in a large amount of maintenance work.

[0007] In summary, it is necessary to further improve the existing technology. Summary of the Invention

[0008] In view of the problems existing in the above-mentioned background technology, the present invention provides a link guiding device for the electric conversion mechanism of railway switches, which has a simple and reasonable structural design, is convenient for maintenance and replacement, reduces the time cost of maintenance, and is safe, reliable and long-lived in use.

[0009] The technical solution of the present utility model is as follows:

[0010] The above-mentioned link guiding device for the electric conversion mechanism of railway switches includes a base, insulating side plates, insulating roller wheels and adjusting pieces; an angle steel is fixedly installed at the bottom of the base in a matching manner and is fixedly installed at the bottom of the rail through the angle steel; an adjusting piece is also fixedly clamped between the bottom of the base and the top of the angle steel in a matching manner; there are a pair of insulating side plates, which are vertically and fixedly arranged on the middle section top surface of the base in a matching manner; the upper ends of the pair of insulating side plates are connected to each other through a second bolt assembly, and the lower ends are connected to each other through another second bolt assembly; the insulating roller wheels are hinged to the second bolt assemblies between the upper ends and the lower ends of the pair of insulating side plates in a matching manner; the insulating roller wheels and the pair of insulating side plates enclose a closed space.

[0011] In the link guiding device for the electric conversion mechanism of railway switches, a U-shaped guiding groove is further provided on the circumferential surface of the insulating roller wheel in a matching manner.

[0012] In the link guiding device for the electric conversion mechanism of railway switches, the insulating roller wheel is made of polytetrafluoroethylene wear-resistant insulating material.

[0013] In the link guiding device for the electric conversion mechanism of railway switches, the base is of an integral structure, and first bolt holes are vertically provided at both ends thereof in a matching manner; mounting holes are provided at both ends of the adjusting piece in a matching manner; both ends of the base and the adjusting piece are assembled and fixed to the angle steel through the first bolt holes and the mounting holes and a first bolt assembly.

[0014] In the link guiding device for the electric conversion mechanism of railway switches, the first bolt assembly is composed of a first bolt, a first flat washer, a first spring washer, a first nut, a first locknut and a first split pin; the first bolt is a hexagonal head screw, which vertically passes through the first bolt hole, the mounting hole and the angle steel from top to bottom and extends downward from the angle steel; the screw of the first bolt extending downward from the angle steel is successively and vertically provided with a first flat washer, a first spring washer, a first nut and a first locknut from top to bottom; a first split pin is radially provided on the lower end screw of the first bolt, and the first flat washer, the first spring washer, the first nut and the first locknut are axially limited through the first split pin.

[0015] The link guiding device of the electric conversion mechanism of the railway switch, wherein: each of the pair of insulating side plates includes a main plate; insulating pads are fixedly arranged in a matching manner on the mutually facing side surfaces of the main plates of the pair of insulating side plates.

[0016] The link guiding device of the electric conversion mechanism of the railway switch, wherein: second bolt holes are horizontally and matchingly formed at the upper and lower ends of the main plate; assembly holes are horizontally and matchingly formed at the upper and lower ends of the insulating pad.

[0017] The link guiding device of the electric conversion mechanism of the railway switch, wherein: the second bolt assembly consists of a second bolt, a second spring washer, a second locknut and a second split pin; the second bolt is a hexagonal head screw, which passes through the second bolt hole and the assembly hole from left to right and the end screw extends outwards from the insulating side plate; the second spring washer and the second locknut are sequentially and matchingly installed on the end screw of the second bolt extending outwards from the insulating side plate from left to right; the second split pin is radially and matchingly installed on the end screw of the second bolt extending outwards from the insulating side plate, and the second spring washer and the second locknut are axially limited by the second split pin.

[0018] The link guiding device of the electric conversion mechanism of the railway switch, wherein: the insulating roller is pivotally hinged on the screw of the second bolt located between the pair of insulating side plates. Beneficial effects

[0019] The link guiding device of the electric conversion mechanism of the railway switch of the present invention has a simple and reasonable structural design and is designed as a detachable structure. During daily maintenance and replacement, only the bolt assembly needs to be disassembled and assembled to complete the maintenance and replacement, greatly reducing the time cost of maintenance and having high economy; the structure of insulating side plates and insulating rollers is used to replace the insulating block, changing the sliding friction to rolling friction, significantly reducing the running resistance during the transmission of the long link, reducing the pulling force, and increasing the service life of the conversion equipment and the switch point rail; using insulating rollers instead of insulating blocks, the rolling friction between the long link and the insulating rollers reduces the friction between the long link and the guiding device, significantly reducing the running resistance during the transmission of the long link, reducing the pulling force, and increasing the service life of the conversion equipment; the support mode of the long link is changed, that is, a U-shaped guiding groove is arranged on the insulating roller, so that the long link and the insulating roller form a lower pair, reducing the wear of the insulating roller and providing a more accurate and flexible guiding effect for the long link. Description of the drawings

[0020] Figure 1 It is the front view of the link guiding device of the electric conversion mechanism of the railway switch of the present invention;

[0021] Figure 2Isometric view of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention;

[0022] Figure 3 Front view after the main plates of the base and the insulating side plates of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention are combined;

[0023] Figure 4 Top view after the main plates of the base and the insulating side plates of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention are combined;

[0024] Figure 5 Front view of the insulating roller of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention;

[0025] Figure 6 Cross-sectional view of the insulating roller of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention;

[0026] Figure 7 Front view of the adjusting piece of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention;

[0027] Figure 8 Top view of the adjusting piece of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention;

[0028] Figure 9 Front view of the insulating backing plate of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention;

[0029] Figure 10 Top view of the insulating backing plate of the connecting rod guiding device of the electric conversion mechanism for railway turnouts of the present invention. Detailed implementation manners

[0030] Next, the technical solutions of the present utility model will be clearly and completely described in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0031] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inside", "above", "below", "left", "right", "top", "bottom", etc. is based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Figure 1 Shown orientation or positional relationship, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation of the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0032] As Figures 1 to 6 shown, the link guiding device of the electric conversion mechanism for railway switches of the present invention includes a base 1, insulating side plates 2, insulating roller wheels 3, adjusting pieces 4, a first bolt assembly 5, and a second bolt assembly 6.

[0033] An angle steel 7 is fitted and installed at the bottom of the base 1 and fixedly installed at the bottom of the rail through the angle steel 7, and the displacement of the base 1 in the horizontal and vertical directions is restricted by the angle steel 7, providing a stable support for the guiding device. Among them, the base 1 is of an integral structure, providing more stable support; an adjusting piece 4 is fitted and installed between the bottom of the base 1 and the top of the angle steel 7, and the distance adjustment of the base 1 in the vertical direction can be achieved through adjusting pieces 4 of different thicknesses. First bolt holes 11 are vertically formed at both ends of the base 1; mounting holes 41 are formed at both ends of the adjusting piece 4; both ends of the base 1 and the adjusting piece 4 are assembled and fixed to the angle steel 7 through the first bolt holes 11 and the mounting holes 41 and the first bolt assembly 5.

[0034] The first bolt assembly 5 is composed of a first bolt 51, a first flat washer 52, a first spring washer 53, a first nut 54, a first locknut 55, and a first split pin 56; the first bolt 51 is a hexagonal head screw rod, which vertically passes through the first bolt hole 11 of the base 1, the mounting hole 41 of the adjusting piece 4, and the angle steel 7 from top to bottom and extends downward from the angle steel 7. The screw rod of the first bolt 51 extending downward from the angle steel 7 is sequentially fitted and installed with a first flat washer 52, a first spring washer 53, a first nut 54, and a first locknut 55 from top to bottom; the first split pin 56 is radially fitted and installed on the end screw rod at the lower end of the first bolt 51 to axially limit the first flat washer 52, the first spring washer 53, the first nut 54, and the first locknut 55.

[0035] There are a pair of insulating side plates 2, which are vertically and fixedly fitted to the middle section top surface of the base 1; the pair of insulating side plates 2 are parallel and symmetrical to each other, and each of the pair of insulating side plates 2 includes a main body plate 21; insulating pads 22 are fixedly arranged on one side surface of the main body plates 21 of the pair of insulating side plates 2 facing each other; second bolt holes 211 are horizontally formed at the upper and lower ends of the main body plates 21 of the pair of insulating side plates 2; the upper ends of the pair of insulating side plates 2 are connected to each other through the second bolt holes 211 with a second bolt assembly 6, and the lower ends of the pair of insulating side plates 2 are connected to each other through the second bolt holes 211 with another second bolt assembly 6; the insulating side plates 2 play an insulating and enclosing role; assembly holes 221 are formed at the upper and lower ends of the insulating pads 22.

[0036] The second bolt assembly 6 is composed of a second bolt 61, a second spring washer 62, a second locknut 63 and a second split pin 64; the second bolt 61 is a hexagon head screw, which passes through the second bolt holes 211 of the pair of insulating side plates 2 and the assembly holes 221 of the insulating backing plate 2 from left to right, and the end screw extends outwards from the insulating side plate 2; the end screw of the second bolt 61 extending outwards from the insulating side plate 2 is successively and fittingly installed with a second spring washer 62 and a second locknut 63 from left to right; the second split pin 64 is fittingly installed on the end screw of the second bolt 61 extending outwards from the insulating side plate 2 along the radial direction of the second bolt 61 to axially limit the second spring washer 62 and the second locknut 63.

[0037] There are a pair of insulating roller wheels 3, which are respectively and fittingly sleeved on the screws of the second bolts 61 of a pair of second bolt assemblies 6 located between the upper and lower ends of the pair of insulating side plates 2; the insulating roller wheels 3 are made of polytetrafluoroethylene wear-resistant insulating material, and a closed space is formed by the insulating side plates 2 arranged on both axial sides to provide an insulating working environment for the long connecting rod 8. Among them, a U-shaped guiding groove is arranged on the insulating roller wheel 3, so that the long connecting rod 8 and the insulating roller wheel 3 form a lower pair, reducing the wear of the insulating roller wheel 3 and providing a more accurate guiding effect for the long connecting rod 8; the insulating roller wheel 3 plays an insulating and enclosing role, and the rolling transmission of the long connecting rod 8 is realized by installing the insulating roller wheel 3 on the second bolt 61; the long connecting rod 8 drives the insulating roller wheel 3 to freely rotate around the second bolt 61 during the transmission process.

[0038] Among them, during the operation of the conversion device, the long connecting rod 8 transmits displacement through the connecting rod guiding device of the railway switch electric conversion mechanism of the present invention; the insulating roller wheel 3 is in direct contact with the long connecting rod 8 to provide a supporting and guiding effect. The insulating roller wheel 3 changes the original sliding friction into rolling friction, greatly reducing the energy loss of the long connecting rod 8 during the action process; a U-shaped guiding groove is arranged on the insulating roller wheel 3, so that the long connecting rod 8 and the insulating roller wheel 3 form a lower pair, reducing the wear of the insulating roller wheel 3 and providing a more accurate guiding effect for the long connecting rod 8.

[0039] The working principle of the present invention is as follows:

[0040] The base 1 is fixedly connected to the stock rail through the angle steel 7, providing stable support for the connecting rod guiding device of the railway switch electric conversion mechanism of the present invention; by arranging an insulating roller wheel 3 at each of the upper and lower parts and an insulating side plate 2 at each of the left and right parts, an insulating and enclosed operating environment is formed to limit the displacement of the long connecting rod 8 in the horizontal and vertical directions and provide a supporting and guiding effect for the long connecting rod 8.

[0041] The structure of the present invention is designed simply and reasonably, is convenient for maintenance and replacement, reduces the time cost of maintenance, and is safe, reliable and long-lived in use.

Claims

1. A connecting rod guiding device for an electric conversion mechanism of a railway turnout, characterized in that: The guiding device includes a base (1), insulating side plates (2), insulating roller wheels (3) and adjusting pieces (4); An angle steel (7) is fitted and mounted at the bottom of the base (1) and is fixedly mounted at the bottom of the rail through the angle steel (7); an adjusting piece (4) is also fixedly clamped in a matching manner between the bottom of the base (1) and the top of the angle steel (7); There are a pair of the insulating side plates (2), which are vertically and fixedly mounted on the top surface of the middle section of the base (1) in a matching manner; the upper ends of the pair of insulating side plates (2) are connected to each other through a second bolt assembly (6), and the lower ends are connected to each other through another second bolt assembly (6); A pair of the insulating roller wheels (3) are hinged to the second bolt assemblies (6) between the upper ends and between the lower ends of the pair of insulating side plates (2) in a matching manner; the insulating roller wheels (3) and the pair of insulating side plates (2) enclose a closed space; A U-shaped guiding groove is also provided on the circumferential surface of the insulating roller wheel (3) in a matching manner; The base (1) is of an integral structure, and first bolt holes (11) are provided in the vertical direction at both ends thereof; mounting holes (41) are provided at both ends of the adjusting piece (4) in a matching manner; both ends of the base (1) and the adjusting piece (4) are assembled and fixed to the angle steel (7) through the first bolt holes (11) and the mounting holes (41) and with a first bolt assembly (5); The first bolt assembly (5) is composed of a first bolt (51), a first flat washer (52), a first spring washer (53), a first nut (54), a first locknut (55) and a first split pin (56); The first bolt (51) is a hexagonal head screw rod, which vertically passes through the first bolt hole (11), the mounting hole (41) and the angle steel (7) from top to bottom and extends downward below the angle steel (7); the screw rod of the first bolt (51) extending downward below the angle steel (7) is sequentially and matchingly mounted with a first flat washer (52), a first spring washer (53), a first nut (54) and a first locknut (55) from top to bottom; A first split pin (56) is mounted on the lower end screw rod of the first bolt (51) in the radial direction, and the first flat washer (52), the first spring washer (53), the first nut (54) and the first locknut (55) are axially limited through the first split pin (56).

2. The connecting rod guiding device of the electric conversion mechanism of the railway switch according to claim 1, characterized in that: The insulating roller wheel (3) is made of a polytetrafluoroethylene wear-resistant insulating material.

3. The link guiding device of the electric conversion mechanism of the railway switch according to claim 1, characterized in that: Each of the pair of insulating side plates (2) includes a main body plate (21); insulating backing plates (22) are fixedly provided on the mutually facing side surfaces of the main body plates (21) of the pair of insulating side plates (2) in a matching manner.

4. The link guiding device of the electric conversion mechanism for railway switches according to claim 3, characterized in that: Second bolt holes (211) are provided in the horizontal direction at the upper and lower ends of the main body plate (21); Assembly holes (221) are provided in the horizontal direction at the upper and lower ends of the insulating backing plate (22) in a matching manner.

5. The connecting rod guiding device of the electric conversion mechanism of the railway switch according to claim 4, characterized in that: The second bolt assembly (6) is composed of a second bolt (61), a second spring washer (62), a second locknut (63) and a second split pin (64); The second bolt (61) is a hexagon head screw, which passes through the second bolt hole (211) and the assembly hole (221) from left to right, and the end screw extends outwards from the insulating side plate (2); the end screw of the second bolt (61) extending outwards from the insulating side plate (2) is successively and coaxially installed with the second spring washer (62) and the second locknut (63) from left to right; The end screw of the second bolt (61) extending outwards from the insulating side plate (2) is coaxially installed with the second split pin (64) along the radial direction, and the second split pin (64) axially limits the second spring washer (62) and the second locknut (63).

6. The link guiding device of the electric conversion mechanism of the railway switch according to claim 5, characterized in that: The insulating roller (3) is pivotally hinged to the screw of the second bolt (61) between a pair of the insulating side plates (2).

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