A new tram switch

Abstract

The application discloses a novel tram frog, which comprises a frog main body, a sliding block and four groove rails fixedly welded with four end heads of the frog main body, an assembly cavity is formed on the upper end face of the frog main body, the sliding block is movably assembled in the assembly cavity, two groups of symmetrical "eight" type frog rim grooves are formed on the upper end face of the frog main body and located on the left and right sides of the assembly cavity, the upper end face of the sliding block is formed with a first butt joint rim groove and a second butt joint rim groove, the first butt joint rim groove and the second butt joint rim groove are in the "eight" type, the position of the sliding block is adjusted, the first butt joint rim groove and the second butt joint rim groove are communicated with corresponding frog rim grooves in the two groups of "eight" type frog rim grooves, and the grooves of the four groove rails are communicated with corresponding frog rim grooves in the two groups of "eight" type frog rim grooves. The tram frog can improve the passing speed of the tram, avoid vibration and noise and reduce the frog point wear.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of the crossing rail frog of tram, and particularly relates to a new type of tram frog which can adopt deep grooves to improve the passing speed when the crossing angle of the diamond crossing is large. BACKGROUND

[0002] The tram diamond crossing generally comprises four frogs, and for the tram diamond crossing, generally, when the crossing angle is less than or equal to 30 degrees, the frog wheel groove of the frog is generally deep groove, and when the crossing angle is greater than 30 degrees, the frog wheel groove of the frog is generally shallow groove. When the diamond crossing adopts shallow groove, the allowable speed of the shallow groove crossing is 15 km / h, which has a great influence on the running speed of the vehicle, which greatly affects the operation efficiency. In addition, the current tram diamond crossing generally adopts fixed frog, and the existing fixed frog not only has the above speed limit problem, but also has inherent harmful space due to the wheel-rail conversion area. When the vehicle passes through the harmful space, it will bring greater vibration noise, and the frog crossbar is also worn. SUMMARY

[0003] In order to solve the defects of the above-mentioned technology, the present application provides a new type of tram frog which can adopt deep grooves to improve the passing speed when the crossing angle of the diamond crossing is large.

[0004] The technical scheme adopted by the present application to achieve the above technical effects is as follows:

[0005] A new type of tram frog, comprising a frog main body, a sliding block assembled on the frog main body, and four groove steel rails respectively welded and fixed with four end heads of the frog main body, an assembly cavity is formed in the middle position of the upper end face of the frog main body, the sliding block is slidably assembled in the assembly cavity, two groups of symmetrical "eight" type frog wheel grooves are formed on the upper end face of the frog main body on the left and right sides of the assembly cavity, a first butt joint wheel groove and a second butt joint wheel groove are formed on the upper end face of the sliding block, the first butt joint wheel groove and the second butt joint wheel groove are in the shape of "eight", when the sliding block is slidably adjusted to the first position, the first butt joint wheel groove is connected with a pair of corresponding frog wheel grooves in the two groups of "eight" type frog wheel grooves, when the sliding block is slidably adjusted to the second position, the second butt joint wheel groove is connected with another pair of corresponding frog wheel grooves in the two groups of "eight" type frog wheel grooves, and the grooves of the four groove steel rails are respectively connected with the corresponding frog wheel grooves in the two groups of "eight" type frog wheel grooves.

[0006] Preferably, in the new-type tram frog, a limiting and stabilizing device is arranged between the assembly cavity and the sliding block.

[0007] Preferably, in the new-type tram frog, the limiting and stabilizing device comprises limiting grooves formed on the left and right cavity walls of the assembly cavity, and limiting flanges formed on the left and right sides of the sliding block, the limiting flanges being slidably fitted in the limiting grooves.

[0008] Preferably, in the new-type tram frog, the width of the sliding block is greater than the width of the assembly cavity, and the front and rear ends of the sliding block protrude from the left and right sides of the assembly cavity in the width direction, and the bottom of the sliding block is provided with an abutting positioning device for positioning the first position and the second position.

[0009] Preferably, in the new-type tram frog, the abutting positioning device comprises a first abutting positioning block and a second abutting positioning block fixed respectively at the front and rear ends of the bottom of the sliding block, the first position is that the inner side surface of the first abutting positioning block abuts with the front side surface of the frog body, and the second position is that the inner side surface of the second abutting positioning block abuts with the rear side surface of the frog body.

[0010] Preferably, in the new-type tram frog, the first abutting positioning block and the second abutting positioning block are respectively welded to the bottom of the sliding block.

[0011] Preferably, in the new-type tram frog, the first abutting positioning block and the second abutting positioning block are respectively bolted to the bottom of the sliding block.

[0012] Preferably, in the new-type tram frog, the front and rear ends of the sliding block are provided with a traction connecting piece connected with an external traction device at at least one end.

[0013] Preferably, in the new-type tram frog, the traction connecting piece is a pull rod welded at at least one end of the front and rear ends of the sliding block.

[0014] Preferably, in the new-type tram frog, the traction connecting piece is a joint iron welded at at least one end of the front and rear ends of the sliding block.

[0015] The new tram frog of the present application can meet the condition that deep groove is still used when the crossing angle of the diamond crossing is large, so that the passing speed is improved, and the operation efficiency is improved. In addition, this new frog can also be used when the diamond angle is small. Since the new frog of the present application cancels the wheel-rail conversion area, there is no harmful space inherent in the fixed frog, which on the one hand avoids the vibration and noise caused by the vehicle passing through the harmful space, and on the other hand can reduce the wear of the frog point. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The top view of the new tram frog of the present application after assembly;

[0017] Figure 2 The perspective view of the new tram frog of the present application after assembly;

[0018] Figure 3 The perspective view of the frog body of the present application;

[0019] Figure 4 The side view of the frog body of the present application;

[0020] Figure 5 The assembly view of the sliding block moving adjustment in the second position and the frog body of the present application;

[0021] Figure 6 The perspective view of the sliding block of the present application;

[0022] Figure 7 The perspective structural view of the sliding block in an embodiment of the present application;

[0023] Figure 8 The perspective structural view of the sliding block in another embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to further understand the present application, the present application will be further described below with reference to the accompanying drawings and specific embodiments:

[0025] In the description of the present application, it should be noted that the terms "vertical", "upper", "lower", "horizontal" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, "first", "second", "third", "fourth" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "arrange", "mount", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected, it can be mechanically connected, or it can be electrically connected, it can be directly connected, or it can be connected through an intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0027] Please refer to Figure 1 and Figure 2 As shown in the figure, the embodiment of the present application proposes a new type of tram frog, which comprises a frog body 1, a sliding block 2 assembled on the frog body 1, and four groove rails 3 respectively welded and fixed with four ends of the frog body 1. Among them, as shown in Figure 3 , Figure 4 and Figure 5 The upper end surface of the frog body 1 is formed with an assembly cavity 11 at the middle position, and the sliding block 2 is movably adjusted and assembled in the assembly cavity 11. As shown in Figure 3 The upper end surface of the frog body 1 is formed with two groups of symmetrical "eight" type frog rim grooves 12 on the left and right sides of the assembly cavity 11, and the size of the frog rim groove 12 is matched with the size of the groove of the groove rail 3. As shown in Figure 6 The upper end surface of the sliding block 2 is formed with a first butt joint rim groove 21 and a second butt joint rim groove 22, wherein the first butt joint rim groove 21 and the second butt joint rim groove 22 are distributed in the form of "eight". When the sliding block 2 is moved and adjusted to the first position, the first butt joint rim groove 21 is connected to a pair of corresponding frog rim grooves of the two groups of "eight" type frog rim grooves 12; when the sliding block 2 is moved and adjusted to the second position, the second butt joint rim groove 22 is connected to another pair of corresponding frog rim grooves of the two groups of "eight" type frog rim grooves 12. As shown in Figure 5 For the sliding block 2 moving adjustment in the second position, the assembly drawing of the sliding block 2 and the frog body 1. As shown in Figure 1 and Figure 2 The grooves of the four groove rails 3 are respectively connected to the corresponding frog rim grooves of the two groups of "eight" type frog rim grooves 12 on the frog body 1. The grooves of the groove rails 3 and the corresponding frog rim grooves, the upper end surface of the sliding block 2 and the upper end surface of the frog body 1, and the first butt joint rim groove 21 and the second butt joint rim groove 22 on the sliding block 2 and the corresponding frog rim groove are all smoothly connected.

[0028] Further, in the preferred embodiment of the present application, a position-stabilizing device is arranged between the assembly cavity 11 and the sliding block 2, which is used to stabilize the position of the sliding block 2 in the assembly cavity 11, to keep the concentricity during the movement of the sliding block 2 in the assembly cavity 11, and to keep the stability without deviation after the sliding block 2 is adjusted in place.

[0029] As a specific embodiment, as shown in Figure 2 , Figure 4 and Figure 5 , the position-stabilizing device comprises a position-limiting groove 111 formed on the left and right cavity walls of the assembly cavity 11, and a position-limiting flange 23 formed on the left and right sides of the sliding block 2, wherein the position-limiting flange 23 is slidingly fitted in the position-limiting groove 111, and through the combination of the two, the position of the sliding block 2 in the assembly cavity 11 is maintained stable and limited.

[0030] Further, in the preferred embodiment of the present application, as shown in Figure 5 , the width of the sliding block 2 is greater than the width of the assembly cavity 11, and the front and rear ends of the sliding block 2 protrude from the left and right sides of the assembly cavity 11 in the width direction. The bottom of the sliding block 2 is provided with an abutting positioning device for positioning the first position and the second position, which is used to assist the quick and accurate positioning of the first position and the second position during the movement adjustment of the sliding block 2, so that the sliding block 2 can quickly and accurately complete the adjustment of the first position and the second position, thereby completing the selective connection and communication of the first abutting flange groove 21 and the second abutting flange groove 22 with the two groups of symmetrical "8"-shaped frog flange grooves 12 arranged on the frog body 1, to change the track communication path.

[0031] As a specific embodiment, as shown in Figure 6As shown, the docking positioning device includes a first docking positioning block 24 and a second docking positioning block 25 fixed at the front and rear ends of the sliding block 2 respectively. Among them, the inner side of the first docking positioning block 24 is in contact with the front side of the frog body 1 in the first position, and the inner side of the second docking positioning block 25 is in contact with the rear side of the frog body 1 in the second position. When moving the adjusting sliding block 2, when the inner side of the first docking positioning block 24 is in contact with the front side of the frog body 1, it can be confirmed that the sliding block 2 is in the first position at this time, and the sliding block 2 does not need to be moved again. The first docking rim groove 21 on the sliding block 2 and the other pair of obliquely corresponding frog rim grooves in the two groups of symmetrically arranged "eight" shaped frog rim grooves 12 on the frog body 1 are quickly connected in communication. When moving the adjusting sliding block 2, when the inner side of the second docking positioning block 25 is in contact with the rear side of the frog body 1, it can be confirmed that the sliding block 2 is in the second position at this time, and the sliding block 2 does not need to be moved again. The second docking rim groove 22 on the sliding block 2 and the other pair of obliquely corresponding frog rim grooves in the two groups of symmetrically arranged "eight" shaped frog rim grooves 12 on the frog body 1 are quickly connected in communication.

[0032] As a specific embodiment, the first docking positioning block 24 and the second docking positioning block 25 are respectively welded and fixed with the bottom of the sliding block 2. Of course, the first docking positioning block 24 and the second docking positioning block 25 can also be respectively bolted and fixed with the bottom of the sliding block 2. When assembling the sliding block 2 and the frog body 1, at least one side of the docking positioning block should be in a vacant state, for example, after fixing the first docking positioning block 24, the rear end of the sliding block 2 without the second docking positioning block 25 is inserted from the front opening of the assembly cavity 11 along the width direction of the assembly cavity 11. In this process, the limiting flanges 23 on the left and right sides of the sliding block 2 are slidably fitted in the limiting grooves 111 on the left and right side walls of the assembly cavity 11. After the sliding block 2 is assembled, the second docking positioning block 25 is fixed at the rear end of the sliding block 2.

[0033] Further, in the preferred embodiment of the present application, as shown in Figure 1 、 Figure 2 、 Figure 5 and Figure 6 , at least one end of the front and rear ends of the sliding block 2 is provided with a traction connecting piece 4 connected with an external traction device. The traction connecting piece 4 is connected with the external traction device, and when the sliding block 2 needs to be moved, the sliding block 2 is changed between the first position and the second position by the traction device.

[0034] In some embodiments, as shown in Figure 5As shown, the traction connecting piece 4 is a pull rod 41 welded at at least one end of the front and rear ends of the sliding block 2, and the sliding block 2 can be conveniently moved and adjusted by connecting the pull rod 41 with the external traction device. In other embodiments, as shown, Figure 8 As shown, the traction connecting piece 4 is a pull rod 41 welded at at least one end of the front and rear ends of the sliding block 2, and the sliding block 2 can be conveniently moved and adjusted by connecting the pull rod 41 with the external traction device. In other embodiments, as shown, Figure 3 As shown, in order to facilitate the better welding and fixing of the end of the frog body 1 and the channel steel rail 3, the two end faces of the frog body 1 are formed with grooves 13 after the end faces are machined into ends. In this way, the channel steel rail 3 and the inner side welding side of the end have better welding operation space, which facilitates the welding of the end and the channel steel rail 3. It should be noted that the grooves 13 are not necessarily provided. If aluminum thermal welding or flash welding is used, the two end faces of the frog body 1 must be machined into ends, and the grooves 13 must be provided at this time. If manual welding is used, whether the grooves 13 are provided or not is not required. As a preferred embodiment of the present application, the frog body 1 and the sliding block 2 are both made of alloy steel.

[0035] The novel tram frog of the present application can meet the deep groove when the crossing angle of the diamond crossing is large, so as to improve the passing speed and the operation efficiency. In addition, this new frog can also be used when the diamond angle is small. Since the frog of the present application cancels the wheel-rail conversion area, there is no harmful space inherent in the fixed frog, which on the one hand avoids the vibration and noise caused by the vehicle passing through the harmful space, and on the other hand can reduce the wear of the frog heart.

[0036] The basic principles, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A new tram switch, characterized in that, The utility model provides a kind of adjustable frog, including the frog body (1), the sliding block (2) assembled on the frog body (1), and four slot rails (3) respectively welded with four end heads of the frog body (1), the upper end surface of the frog body (1) is formed with assembly cavity (11) in middle position, the sliding block (2) is movably adjusted and assembled in the assembly cavity (11), the upper end surface of the frog body (1) is formed with two groups of symmetrical "eight” type frog rim grooves (12) in the left and right sides of the assembly cavity (11), the upper end surface of the sliding block (2) is formed with first butt rim groove (21) and second butt rim groove (22), the first butt rim groove (21) and the second butt rim groove (22) are "eight” type, when the sliding block (2) is moved and adjusted to first position, the first butt rim groove (21) is connected with a pair of corresponding frog rim grooves of two groups of "eight” type frog rim grooves (12) in oblique direction, when the sliding block (2) is moved and adjusted to second position, the second butt rim groove (22) is connected with another pair of corresponding frog rim grooves of two groups of "eight” type frog rim grooves (12) in oblique direction, the slot of four slot rails (3) is respectively connected with corresponding frog rim groove of two groups of "eight” type frog rim grooves (12).

2. The new tram frog according to claim 1, characterized in that Limiting and stabilizing device is further arranged between the assembly cavity (11) and the sliding block (2).

3. The new tram frog according to claim 2, characterized in that The limiting and stabilizing device includes limiting grooves (111) formed on the left and right side walls of the assembly cavity (11), and limiting flanges (23) formed on the left and right sides of the sliding block (2), the limiting flanges (23) are slidably fitted in the limiting grooves (111).

4. The new tram frog according to claim 1, characterized in that The width of the sliding block (2) is greater than the width of the assembly cavity (11), and the front and rear ends of the sliding block (2) protrude from the left and right sides of the assembly cavity (11) in the width direction, and the bottom of the sliding block (2) is provided with butt positioning devices for positioning the first position and the second position.

5. The new tram frog according to claim 4, characterized in that The butt positioning devices include first butt positioning blocks (24) and second butt positioning blocks (25) fixed on the front and rear ends of the bottom of the sliding block (2), respectively, the inner side surface of the first butt positioning block (24) is fitted with the front side surface of the frog body (1) in the first position, and the inner side surface of the second butt positioning block (25) is fitted with the rear side surface of the frog body (1) in the second position.

6. The new tram frog according to claim 5, characterized in that The first butt positioning block (24) and the second butt positioning block (25) are respectively welded with the bottom of the sliding block (2).

7. The new tram frog according to claim 5, characterized in that The first butt positioning block (24) and the second butt positioning block (25) are respectively bolted with the bottom of the sliding block (2).

8. The new tram frog according to claim 1, characterized in that The front and rear ends of the sliding block (2) are provided with traction connectors (4) connected with external traction devices at at least one end.

9. The new tram frog according to claim 8, characterized in that The traction connector (4) is a pull rod (41) welded at at least one end of the front and rear ends of the sliding block (2).

10. The new tram frog according to claim 8, characterized in that The traction connecting piece (4) is a joint iron (42) welded at at least one end of the front and rear ends of the sliding block (2).

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