Railway track inspection tester walking wheel seat insulating shield

Abstract

A railway track inspection tester walking wheel seat insulation shield belongs to the railway detection technology field, and comprises an insulation housing and a walking wheel seat, the upper surface of the insulation housing is symmetrically provided with flat groove parts, the rear surface of the insulation housing is provided with a connecting groove, the connecting groove is arranged on the right lower part of the walking wheel seat, and the flat groove parts are arranged on the upper surface of the insulation housing. A flat groove part is arranged on the left surface of the insulating shell, a connecting groove is formed in the right surface of the insulating shell, two inverted convex holes are formed between the connecting groove and the flat groove part in a penetrating mode, an insulating vertical plate is detachably installed on the right surface of the insulating shell, and a banister brush is fixedly installed on the left surface of the insulating vertical plate. Therefore, interference on electronic detection elements in the inspection tester is avoided, and accuracy and stability of detection data are ensured. In addition, after installation is completed, the protection wheel can make contact with the banister brush when rolling, the banister brush can clean the outer surface of the protection wheel, auxiliary movement deviation caused by impurities on the outer surface of the protection wheel is prevented, and the detection effect is prevented from being affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to railway detection technical field, concretely relates to a railway track inspection instrument running wheel seat insulation shield. BACKGROUND

[0002] Railway is important traffic infrastructure, and the safety and quality of its track are crucial. Railway track inspection instrument plays an indispensable role in ensuring track state monitoring, maintaining track geometric parameters and ensuring train operation safety. In the structural design of railway track inspection instrument, the running wheel seat is one of the key components, which directly contacts with the track and supports the operation of the inspection instrument.

[0003] In the railway system, the track circuit is a key part for detecting train position and controlling signals. When the wheel seat of the track inspection instrument has no insulation structure, in the electrified railway environment, the wheel seat is easy to form a conductive loop due to electromagnetic field and stray current. The track circuit relies on the specific transmission of current on the track to transmit signals, such as when a train occupies the track, it will change the current state of the track circuit, thereby triggering the signal system. The conductive loop formed by the wheel seat will interfere with the normal track circuit current, causing the signal system to receive false information. For example, it may cause the signal system to misjudge that there is no train on the track and open the signal, which poses a great threat to the safety of subsequent train operation, because the train may run in the section that should be prohibited, thereby causing serious accidents such as train collision. Therefore, the railway track inspection instrument running wheel seat insulation shield is provided to solve the above technical problems. SUMMARY

[0004] In the existing railway track inspection instrument running wheel seat technology, without insulation measures, in the electrified railway environment, there is a problem that a conductive loop is easy to be formed due to electromagnetic field and stray current, which interferes with the track circuit current, causes the signal system to receive false information, may misjudge the open signal of the track state, threatens the safety of subsequent train operation, and easily causes serious accidents such as train collision. The utility model puts forward a railway track inspection instrument running wheel seat insulation shield, which is provided with a connecting groove and an inverted protruding groove in the insulation shell, and an insulation vertical plate with a soft brush is arranged on the right surface of the insulation shell. The connecting groove and the inverted protruding groove can realize the connection with the running wheel base and the axle, and the insulation shell can achieve the insulation of the running wheel seat and the track electromagnetic field, thereby avoiding the interference with the internal electronic detection elements of the inspection instrument, ensuring the accuracy and stability of the detection data. In addition, after installation, the soft brush can clean the outer surface of the protection wheel when the protection wheel rolls, preventing the protection wheel from deviating due to impurities on the outer surface, avoiding affecting the detection effect, and effectively solving the related problems of the existing technology, such as no insulation measures for the railway track inspection instrument running wheel seat, interference with the electronic detection elements when detecting the electrified railway, and affecting the accuracy of the detection data. The specific technical scheme is as follows:

[0005] An insulating shield for a running wheel seat of a railway track inspection instrument comprises an insulating shell and a running wheel seat, wherein the upper surface of the insulating shell is symmetrically provided with flat groove portions, the rear surface of the insulating shell is provided with a connecting groove, the connecting groove is installed at the lower right side of the running wheel seat, two inverted convex holes are provided between the connecting groove and the flat groove portion, an insulating vertical plate is detachably installed on the right surface of the insulating shell, and a soft brush is fixedly installed on the left surface of the insulating vertical plate.

[0006] In the above technical solution, two docking holes are formed through the lower surface of the right end of the walking wheel seat, and wheel axles are embedded and fixed in the docking holes. An insulating sleeve is installed between the wheel axle and the docking hole. A protection wheel is rotatably installed on the outer surface of the wheel axle. The outer surface of the protection wheel is in contact with the soft brush. A protection wheel cross plate is fixedly installed on the lower surface of the wheel axle. Bolts are installed between the protection wheel cross plate and the wheel axle. The protection wheel and the protection wheel cross plate are rotatably connected.

[0007] In the above technical solution, two straps are fixedly installed symmetrically on the upper end of the left surface of the insulating vertical plate, and the straps are placed in the corresponding flat grooves. The lower surfaces of the straps are fixedly installed with plugs, and the plugs are inserted into the corresponding inverted convex holes.

[0008] In the above technical solution, a tightening bolt is threadedly installed through the right surface of the insulating vertical plate, and the left end of the tightening bolt is in contact with the right surface of the insulating shell;

[0009] In the above technical solution, the lower surface of each insert block is provided with a groove;

[0010] In the above technical solution, two positioning blocks are fixedly installed on the right surface of the walking wheel seat, and two positioning grooves are penetrated through the left surface of the insulating shell. The outer surface of the positioning block fits with the inner surface of the positioning groove.

[0011] Compared with the prior art, the utility model of the insulation cover for the running wheel seat of the railway track inspection instrument has the following beneficial effects:

[0012] This utility model incorporates connecting grooves and undercut grooves within the insulating housing, along with an insulating vertical plate with a soft-bristle brush on the right surface of the housing. The connecting grooves and undercut grooves allow for connection to the wheel base and axle. This insulating housing effectively insulates the wheel base from the electromagnetic field of the track, effectively preventing interference with railway track signals. Furthermore, after installation, the protective wheel contacts the soft-bristle brush as it rolls, cleaning the outer surface of the wheel. This prevents impurities on the outer surface from causing deviations in the auxiliary movement of the wheel, which could affect detection effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the main structure of the present utility model.

[0014] Figure 2 This is a schematic diagram of the insulating shell body of the present utility model.

[0015] Figure 3 This is a schematic diagram of the rear structural view of the insulating shell of the present invention.

[0016] Figure 4 This is a rear structural schematic diagram of the insulating vertical plate of the present invention.

[0017] Figure 5 It is a structural diagram of the utility model when in use.

[0018] Figure 6 It is a schematic diagram of the cross-sectional structure of the utility model when in use.

[0019] Figures 1-6 Among them: 1. Insulating shell; 11. Flat groove; 12. Inverted convex hole; 13. Connecting groove; 14. Positioning groove; 2. Insulating vertical plate; 21. Strap plate; 211. Insert block; 212. Groove; 22. Soft brush; 23. Tightening bolt; 3. Travel wheel seat; 31. Positioning block; 4. Protective wheel; 5. Wheel axle; 6. Protective wheel cross plate. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In this embodiment, front, back, left, right, up and down are represented by Figure 1 Describes the datum. Figures 1-6 , the utility model provides a technical solution:

[0022] An insulating protective cover for a running wheel seat of a railway track inspection instrument includes an insulating housing 1 and a running wheel seat 3. Flat grooves 11 are symmetrically provided on the upper surface of the insulating housing 1. A connecting groove 13 is provided on the rear surface of the insulating housing 1. The connecting groove 13 is installed at the lower right side of the running wheel seat 3. Two inverted convex holes 12 are provided between the connecting groove 13 and the flat groove 11. An insulating vertical plate 2 is detachably mounted on the right surface of the insulating housing 1. A soft brush 22 is fixedly mounted on the left surface of the insulating vertical plate 2.

[0023] It should be noted that two docking holes are provided on the lower surface of the right end of the walking wheel seat 3, and the wheel axle 5 is embedded and fixed in the docking holes. An insulating sleeve is installed between the wheel axle 5 and the docking hole. A protection wheel 4 is rotatably installed on the outer surface of the wheel axle 5. The outer surface of the protection wheel 4 is in contact with the soft brush 22. A protection wheel cross plate 6 is fixedly installed on the lower surface of the wheel axle 5. Bolts are installed between the protection wheel cross plate 6 and the wheel axle 5, and the protection wheel 4 and the protection wheel cross plate 6 are rotatably connected;

[0024] During installation, first put an insulating sleeve on the outer surface of the axle 5, then insert the insulating sleeve together with the axle 5 into the docking hole of the walking wheel seat 3, then snap the insulating shell 1 into the lower right end of the insulating shell 1 through the connecting groove 13, and align the inverted convex hole 12 with the docking hole position of the walking wheel seat 3, then screw the bolts between the axle 5 and the inverted convex hole 12 to fix the axle 5, the insulating shell 1 and the walking wheel seat 3, then, put the protective wheel 4 on the outer surface of the axle 5, and fix the protective wheel cross plate 6 under the axle 5 with bolts. The protective wheel cross plate 6 prevents it from detaching from the axle 5 without affecting the rotation of the protective wheel 4. The installed insulating shell 1 achieves insulation between the walking wheel seat 3 and the electromagnetic field of the track, thereby effectively avoiding interference with the railway track signal.

[0025] Specifically, two straps 21 are fixedly installed symmetrically at the front and rear upper ends of the left surface of the insulating vertical plate 2. The straps 21 are placed in the corresponding flat grooves 11, and the lower surfaces of the straps 21 are fixedly installed with plugs 211. The plugs 211 are inserted into the corresponding inverted convex holes 12. A tightening bolt 23 is screwed through the right surface of the insulating vertical plate 2, and the left end of the tightening bolt 23 is in contact with the right surface of the insulating housing 1.

[0026] When installing the insulating riser 2, first insert the two insert blocks 211 into the two inverted protrusion holes 12, so that the strap 21 is aligned with the flat groove portion 11. Then, tighten the fastening bolt 23 so that its left end is pressed against the right surface of the insulating housing 1. This completes the fixing operation of the insulating riser 2 to the insulating housing 1. To remove the insulating riser 2, follow the reverse order of the above steps.

[0027] After the bolt is installed in the inverted convex hole 12, in order to make the insert block 211 inserted deeper into the inverted convex hole 12, a groove 212 is opened on the lower surface of the insert block 211. The diameter of the groove 212 is larger than the top diameter of the bolt, so that the top of the bolt can be located in the groove 212, thereby increasing the depth of the insert block 211 inserted into the inverted convex hole 12 and increasing the stability of the insulating vertical plate 2 after installation.

[0028] Finally, when installing the insulating shell 1, in order to facilitate quick docking between the inverted convex hole 12 and the docking hole of the walking wheel seat 3, two positioning blocks 31 are fixedly installed on the right surface of the walking wheel seat 3, and two positioning grooves 14 are passed through the left surface of the insulating shell 1. The positioning block 31 is inserted into the positioning groove 14, so that the outer surface of the positioning block 31 is in contact with the inner surface of the positioning groove 14. The inverted convex hole 12 is better located directly above the docking hole of the walking wheel seat 3, thereby realizing quick docking and facilitating the quick installation of the insulating shell 1.

Claims

1. An insulating shield for a running wheel seat of a railway track inspection instrument, comprising an insulating shell (1) and a running wheel seat (3), characterized in that: The upper surface of the insulating shell (1) is symmetrically provided with a flat groove portion (11), the rear surface of the insulating shell (1) is provided with a connecting groove (13), the connecting groove (13) is installed at the lower right side of the walking wheel seat (3), and two inverted convex holes (12) are provided between the connecting groove (13) and the flat groove portion (11). The right surface of the insulating shell (1) is detachably provided with an insulating vertical plate (2), and the left surface of the insulating vertical plate (2) is fixedly provided with a soft brush (22).

2. The railway track inspection instrument running wheel seat insulation cover according to claim 1, characterized in that: The lower surface of the right end of the walking wheel seat (3) is provided with two docking holes, and the docking holes are both embedded with a wheel axle (5) fixedly installed. An insulating sleeve is installed between the wheel axle (5) and the docking hole. A protection wheel (4) is rotatably installed on the outer surface of the wheel axle (5). The outer surface of the protection wheel (4) is in contact with the soft brush (22). A protection wheel transverse plate (6) is fixedly installed on the lower surface of the wheel axle (5). Bolts are installed between the protection wheel transverse plate (6) and the wheel axle (5). The protection wheel (4) and the protection wheel transverse plate (6) are rotatably connected.

3. The railway track inspection instrument running wheel seat insulation cover according to claim 2, characterized in that: Two straps (21) are fixedly mounted on the upper end of the left surface of the insulating vertical plate (2) in a front-to-back symmetrical manner. The straps (21) are placed on the corresponding flat groove portions (11), and plug blocks (211) are fixedly mounted on the lower surfaces of the straps (21). The plug blocks (211) are plugged into the corresponding inverted convex holes (12).

4. The railway track inspection instrument running wheel seat insulation cover according to claim 3, characterized in that: A tightening bolt (23) is threadedly installed through the right surface of the insulating vertical plate (2), and the left end of the tightening bolt (23) is in contact with the right surface of the insulating shell (1).

5. The railway track inspection instrument running wheel seat insulation cover according to claim 4, characterized in that: The lower surface of each insert block (211) is provided with a groove (212).

6. The railway track inspection instrument running wheel seat insulation cover according to claim 1, characterized in that: Two positioning blocks (31) are fixedly mounted on the right surface of the traveling wheel seat (3), and two positioning grooves (14) are passed through the left surface of the insulating shell (1), and the outer surface of the positioning block (31) is in contact with the inner surface of the positioning groove (14).

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