A high-speed train narrow space non-magnetic slider extractor and a method of use

Abstract

The application discloses a high-speed motor train unit narrow space nonferromagnetic slider extractor and a use method thereof, which comprises a main body base, a threaded body in plug-in connection with the main body base, and an extractor head connected with the threaded body; two rollers are arranged on the moving end of the main body base through cylindrical pins, and the moving end of the main body base is configured as a slope structure; the extractor head is provided with a head threading hole, the cylindrical pin is provided with a cylindrical pin threading hole, the extractor is provided with a wire rope, and the wire rope is threaded into the head threading hole, then passes through the threaded body and the main body base, and is threaded out of the cylindrical pin threading hole. The slider extractor can improve the working efficiency of the slider extraction in the disassembly stage, can realize the replacement of the damaged slider in the cavity after the train is dropped, and can improve the production efficiency. The extractor is designed as an eccentric roller structure and utilizes the mechanical characteristics, so that the slider can always be kept in an elevation angle posture during the movement, the obstacle avoidance purpose is achieved, and the disassembly efficiency is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-speed train advanced repair, and in particular to a high-speed train narrow-space non-ferromagnetic slider extractor and a use method thereof. BACKGROUND

[0002] The CR400BF project motor train unit bogie apron seat is connected and fixed to the bottom frame side beam through a slider. The slider is located in the cavity of the bottom frame side beam. During advanced repair, the slider needs to be taken out for replacement of the sleeper beam mounting block (the sleeper beam mounting block is located in the same cavity as the slider) and updating of the slider. However, due to the small space (the space height is only 57 mm) of the cavity of the bottom frame side beam and the long distance between the slider and the process hole, the slider cannot be taken out from the process hole by hand, and the slider is made of non-ferromagnetic stainless steel material and cannot be taken out by a strong magnet.

[0003] The current temporary treatment scheme is as follows: a strong magnet is used to attract the sleeper beam mounting block during disassembly, and the slider is pushed out by the sleeper beam mounting block. However, due to the simultaneous movement of the two blocks, the magnet is unstable, and the tail of the mounting bolt blocks the slider, resulting in a time-consuming and laborious process of taking out the slider. In addition, if the slider is found to be damaged after the train is dropped, the slider cannot be pushed out by the sleeper beam mounting block.

[0004] Therefore, based on the above technical problems, the technical personnel in the field urgently need to develop a high-speed train narrow-space non-ferromagnetic slider extractor and a use method thereof. SUMMARY

[0005] The purpose of the present application is to provide a high-speed train narrow-space non-ferromagnetic slider extractor and a use method thereof. The extractor solves the problem of the non-ferromagnetic slider in the narrow space, improves the work efficiency of the slider during disassembly, and realizes the replacement of the damaged slider in the cavity after the train is dropped, thereby improving the production efficiency.

[0006] In order to achieve the above purpose, the present application provides the following technical scheme:

[0007] The high-speed train narrow-space non-ferromagnetic slider extractor of the present application comprises:

[0008] A main body base, one end of the main body base is an insertion end, and the other end of the main body base is a moving end integrally formed with the insertion end;

[0009] A threaded body connected to the main body base by insertion, and an extractor head connected to the threaded body;

[0010] The moving end of the main body base is provided with two rollers through a cylindrical pin, and the moving end of the main body base is configured as an inclined surface structure;

[0011] The extractor head is provided with a head threading hole, the cylindrical pin is provided with a cylindrical pin threading hole, the extractor is provided with a string, and the string is threaded through the head threading hole and then through the threaded body and the main body base and threaded out of the cylindrical pin threading hole.

[0012] Further, the threaded body comprises:

[0013] a threaded part connected with the extractor head, and a mounting part at an end of the threaded part away from the extractor head;

[0014] A plug-in round hole is formed at the center of the mounting part, and plug-in notches are formed on both sides of the mounting part and communicate with the plug-in round hole.

[0015] Further, the insertion end of the main body base has a cylindrical part matched with the plug-in round hole and a flat plate part matched with the plug-in notches on both sides;

[0016] When the insertion end of the main body base is plugged into the mounting part, the moving end is close to the threaded body.

[0017] Further, the position where the moving end cooperates with the cylindrical pin has a lock hole, and the end of the cylindrical pin is provided with a groove;

[0018] The main body base is provided with a plug-in pin;

[0019] The plug-in pin comprises a plug-in pin part plugged into the lock hole and the groove, and an arc part connected with the two plug-in pin parts.

[0020] Further, the outer diameter of the extractor head is smaller than the outer diameter of the threaded body.

[0021] The application also discloses a use method of the extractor for the non-ferromagnetic slider in the narrow space of the high-speed EMU.

[0022] S1, tie the ends of the string to the threading holes in the extractor head and the cylindrical pin respectively, at this time the string passes through the threaded body and the main body base;

[0023] S2, extend the extractor head into the side beam hole of the underframe and pass through the bolt mounting hole of the slider, and then into the cavity of the underframe side beam;

[0024] S3, use the telescopic rod to extend into the cavity from the process hole of the underframe side beam, and then extend the telescopic rod in the cavity, use the telescopic rod with ferromagnetism to approach the extractor head and hold the extractor head, and then retract the telescopic rod to take out the extractor head from the process hole;

[0025] S4, using a flathead screwdriver, the threaded part is screwed into the bolt mounting hole of the slider and tightened, at this time the threaded part socket line is perpendicular to the length direction of the chassis beam;

[0026] S5, the bolt part of the bolt is inserted into the lock hole and the slot, the main base is installed on the mounting part of the threaded body, and the threaded body and the main base are integrally pushed into the cavity by using a flathead screwdriver. Since the lower surface of the main base is a slope, and the center of gravity of the slider is on the left side of the roller, the slider is in an inclined posture in the cavity under the influence of gravity;

[0027] S6, pull the extractor head to move the slider to the process hole and take it out through the wire rope traction.

[0028] In the above technical solution, the high-speed motor train set narrow space non-ferromagnetic slider extractor and the use method provided by the application have the following beneficial effects:

[0029] The slider extractor of the application can improve the work efficiency of the slider taking out in the disassembly stage, can realize the replacement of the slider in the cavity after the car is dropped, and can improve the production efficiency. The extractor is designed as an eccentric roller structure which utilizes the mechanical properties, can keep the slider in an inclined posture during movement, realizes the obstacle avoidance purpose, and improves the disassembly efficiency.

[0030] The slider extractor utilizes the cylindrical pin and the roller structure to greatly reduce the lateral friction force generated during movement, and is also used for wire rope storage, avoids the problems such as wire rope knotting and winding of the extractor during storage, improves the practicability of the slider extractor, and ensures that the cylindrical pin and the roller do not fall out during rolling. Meanwhile, the bolt plays a switching role in the wire rope storage and unwinding process. BRIEF DESCRIPTION OF DRAWINGS

[0031] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0032] Figure 1 A structure schematic diagram of a high-speed motor train set narrow space non-ferromagnetic slider extractor disclosed by the embodiment of the present application is shown in the figure.

[0033] Figure 2 A structure explosion diagram of a high-speed motor train set narrow space non-ferromagnetic slider extractor disclosed by the embodiment of the present application is shown in the figure.

[0034] Figure 3 A structure schematic diagram of a high-speed motor train set narrow space non-ferromagnetic slider extractor and a slider in cooperation state disclosed by the embodiment of the present application is shown in the figure.

[0035] Figure 4 A schematic diagram of the position of the slider taken by the non-ferromagnetic slider extractor of the high-speed EMU narrow space is disclosed in the embodiments of the present application.

[0036] Figure 5 A state diagram when the slider is taken out by the non-ferromagnetic slider extractor of the high-speed EMU narrow space disclosed in the embodiments of the present application.

[0037] Explanation of reference signs:

[0038] 10, extractor; 20, slider; 30, wire rope;

[0039] 1, main base; 2, threaded body; 3, extractor head; 4, cylindrical pin; 5, roller; 6, plug;

[0040] 101, cylindrical part; 102, flat plate part; 103, moving end; 104, inclined surface structure; 105, lock opening;

[0041] 201, threaded part; 202, mounting part; 203, plug-in round hole; 204, plug-in notch;

[0042] 301, head threading hole;

[0043] 401, cylindrical pin threading hole; 402, groove;

[0044] 601, plug part; 602, arc part;

[0045] 21, bolt mounting hole; 22, process hole; 23, top pick position bolt. DETAILED DESCRIPTION

[0046] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below in conjunction with the drawings.

[0047] Referring to Figures 1 to 5 shown;

[0048] The non-ferromagnetic slider extractor of the high-speed EMU narrow space of the present embodiment comprises:

[0049] The main base 1 has an insertion end at one end and a moving end 103 integrally formed with the insertion end at the other end;

[0050] The threaded body 2 is connected to the main base 1 by plug-in connection, and the extractor head 3 is connected to the threaded body 2;

[0051] The moving end 103 of the main base 1 is provided with two rollers 5 through the cylindrical pin 4, and the moving end 103 of the main base 1 is configured as an inclined surface structure 104;

[0052] The extractor head 3 is provided with a head threading hole 301, the cylindrical pin 4 is provided with a cylindrical pin threading hole 401, the extractor 10 is provided with a wire rope 30, and the wire rope 30 is threaded into the head threading hole 301 and then passes through the threaded body 2 and the main body base 1 and is threaded out of the cylindrical pin threading hole 401.

[0053] Specifically, the embodiment discloses an extractor suitable for a non-ferromagnetic slider in a narrow space of a high-speed motor train unit, which mainly comprises a main body base 1, a threaded body 2 and an extractor head 3. When the slider 20 is disassembled, the wire rope 30 is also needed, and the extractor head 3 and the cylindrical pin 4 of the embodiment are both provided with corresponding threading holes, so that the wire rope 30 is threaded through the extractor head 3 and the cylindrical pin 4 in sequence and penetrates through the threaded body 2 and the main body base 1.

[0054] Preferably, the threaded body 2 of the embodiment comprises:

[0055] a threaded part 201 connected with the extractor head 3 and an installation part 202 located at an end of the threaded part 201 away from the extractor head 3;

[0056] The installation part 202 is provided with a plug-in circular hole 203 at the center position, and both sides of the installation part 202 are provided with plug-in notches 204 in communication with the plug-in circular hole 203.

[0057] In order to cooperate with the threaded body 2, the insertion end of the main body base 1 of the embodiment is provided with a cylindrical part 101 matched with the plug-in circular hole 203 and a flat plate part 102 matched with the plug-in notches 204 on both sides; when the insertion end of the main body base 1 is plugged into the installation part 202, the moving end 103 is close to the threaded body 2.

[0058] In order to prevent the cylindrical pin 4 and the roller 5 from falling off during movement, the position of the moving end 103 matched with the cylindrical pin 4 is provided with a lock 105, and the end of the cylindrical pin 4 is provided with a groove 402.

[0059] The main body base 1 is provided with a plug pin 6.

[0060] The plug pin 6 comprises plug pin parts 601 plugged into the lock 105 and the groove 402 and an arc part 602 connected with the two plug pin parts 601.

[0061] The outer diameter of the extractor head 3 is smaller than the outer diameter of the threaded body 2.

[0062] The application also discloses a use method of the extractor for the non-ferromagnetic slider in the narrow space of the high-speed motor train unit.

[0063] S1, tie the two ends of the string 30 in the wire hole of the extractor head 3 and the cylindrical pin 4 respectively, at this time the string 30 passes through the threaded body 2 and the main base 1;

[0064] S2, extend the extractor head 3 into the side beam hole of the chassis and pass through the bolt mounting hole 21 of the slider 20 and enter the cavity of the chassis side beam;

[0065] S3, use the telescopic rod to extend into the cavity from the process hole 22 of the chassis side beam and extend the telescopic rod in the cavity, use the telescopic rod with ferromagnetism to approach the extractor head 3 and attract the extractor head 3, then retract the telescopic rod to take out the extractor head 3 from the process hole 22;

[0066] S4, use a flathead screwdriver to screw the threaded part into the bolt mounting hole 21 of the slider 20 and tighten, at this time the threaded part 201 spigot line is perpendicular to the length direction of the chassis side beam;

[0067] S5, insert the latch 601 of the latch 6 into the lock 105 and the slot 402, install the main base 1 on the mounting part 202 of the threaded body 2, and use a flathead screwdriver to top the threaded body 2 and the main base 1 into the cavity, because the lower surface of the main base 1 is a slope structure 104, and the center of gravity of the slider 20 is on the left side of the roller 5, under the influence of gravity, the slider 20 at this time is in an inclined posture in the cavity;

[0068] S6, pull the extractor head 3 to move the slider 20 to the process hole 22 and take out by pulling the string 30.

[0069] When pulling, the slider 20 is always in an inclined position, and when the tail of the top pick position bolt 23 is encountered, the head of the slider will not be blocked, and the extractor 10 will not be blocked by the tail of the top pick position bolt 23, because the tail of the top pick position bolt 23 is not in the moving path of the extractor 10. When the tail of the slider encounters the tail of the top pick position bolt 23, the tail of the slider will be lifted, but during this process, the center of gravity of the slider is always on the left side of the roller, so when the slider 20 passes the tail of the bolt and leaves the tail of the top pick position bolt 23, the torque generated by the tension of the wire rope 30 and the friction is smaller than the torque generated by the gravity and the supporting force, so during the entire movement process, the slider 20 can maintain an inclined position and move. After the slider 20 is pulled out of the process hole 22, the extractor 10 is disassembled using a flathead screwdriver, and the pin 6 is pulled out. At this time, the pin 6 is no longer inserted into the groove 402 of the cylindrical pin 4, and the cylindrical pin 4 can rotate freely. The cylindrical pin 4 is rotated using a flathead screwdriver, and the wire rope 30 is wound around the cylindrical pin 4 and the roller 5. After the head 3 of the extractor is received in the threaded portion 201, the pin 6 is inserted into the groove 402 of the cylindrical pin 4. At this time, the cylindrical pin 4 cannot rotate, and the storage of the wire rope 30 of the slider extractor is completed. When used again, the pin 6 is pulled out, and the head 3 of the extractor is pulled. At this time, the cylindrical pin 4 rotates, and the wire rope 30 can be pulled out.

[0070] In the above technical solution, the high-speed motor train unit narrow space non-ferromagnetic slider extractor and the use method provided by the application have the following beneficial effects:

[0071] The slider extractor 10 of the application can improve the work efficiency of the slider 20 during the disassembly stage, can realize the replacement of the odd slider 20 in the cavity after the train is dropped, and can improve the production efficiency. The extractor 10 is designed as an eccentric roller structure and can utilize the mechanical properties to keep the slider 20 in an inclined position during the movement process, avoid obstacles, and improve the disassembly efficiency.

[0072] The slider extractor of the application utilizes the structure of the cylindrical pin 4 and the roller 5 to greatly reduce the lateral friction generated during the movement process, and is also used for the storage of the wire rope 30, avoids the problems such as knotting and winding of the wire rope 30 during storage of the extractor 10, improves the practicability of the slider extractor 10, and ensures that the cylindrical pin 4 and the roller 5 do not fall out during rolling. The pin 6 also plays a switching role during the storage and unwinding of the wire rope 30.

[0073] The above only describes some exemplary embodiments of the application by way of illustration, and it is needless to say that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the application. Therefore, the above figures and descriptions are illustrative in nature and should not be understood as limiting the scope of protection of the claims of the application.

Claims

1. A method for removing a slider based on a non-ferromagnetic slider remover in a narrow space of a high-speed train set, wherein the non-ferromagnetic slider remover (10) in a narrow space of a high-speed train set comprises: A main body base (1), wherein one end of the main body base (1) is an insertion end, and the other end of the main body base (1) is a movable end (103) integrally formed with the insertion end; A threaded body (2) plug-connected to the main body base (1); and An extractor head (3) connected to the threaded body (2); The movable end (103) of the main base (1) is mounted with two rollers (5) via cylindrical pins (4), and the movable end (103) of the main base (1) is configured as an inclined surface structure (104); The extractor head (3) has a head threading hole (301), the cylindrical pin (4) has a cylindrical pin threading hole (401), the extractor (10) is equipped with a wire rope (30), and the wire rope (30) is inserted through the head threading hole (301) and passes through the threaded body (2) and the main body base (1) and then passes out through the cylindrical pin threading hole (401); The threaded body (2) comprises: a threaded portion (201) connected to the extractor head (3); and a mounting portion (202) located at one end of the threaded portion (201) away from the extractor head (3); A plug-in circular hole (203) is provided at the center of the mounting portion (202), and plug-in notches (204) communicating with the plug-in circular hole (203) are provided on both sides of the mounting portion (202); The method is characterized in that the method comprises the following steps: S1. Tie the two ends of the string (30) to the threading holes of the extractor head (3) and the cylindrical pin (4), respectively. At this time, the string (30) passes through the threaded body (2) and the main body base (1); S2, inserting the extractor head (3) into the bottom frame side beam hole and passing through the bolt mounting hole (21) of the slider (20), and entering the bottom frame side beam cavity; S3, using a telescopic rod to penetrate into the mold cavity from the process hole (22) of the side beam of the chassis, and extending the telescopic rod in the mold cavity, using the ferromagnetic telescopic rod to approach the extractor head (3) and absorb the extractor head (3), and then retracting the telescopic rod to take the extractor head (3) out of the process hole (22); S4. Use a flat-blade screwdriver to screw the threaded portion (201) into the bolt mounting hole (21) of the slider (20) and tighten it. At this time, the line connecting the two plug-in notches (204) is perpendicular to the length direction of the chassis side beam; S5. Pull the extractor head (3), and drive the slider (20) to move to the process hole (22) through the rope (30) and remove it.

2. The method for removing a slider using a non-ferromagnetic slider remover in a narrow space of a high-speed train set according to claim 1, characterized in that: The insertion end of the main body base (1) has a cylindrical portion (101) matching the plug-in circular hole (203), and a flat plate portion (102) matching the plug-in notches (204) on both sides; When the insertion end of the main body base (1) is plugged into the mounting portion (202), the movable end (103) is close to the threaded body (2).

3. The method for removing a slider using a non-ferromagnetic slider remover in a narrow space of a high-speed train set according to claim 2, characterized in that: The position where the movable end (103) cooperates with the cylindrical pin (4) has a locking opening (105), and the end of the cylindrical pin (4) is provided with a groove (402); The main body base (1) is provided with a latch (6); The latch (6) comprises a latch portion (601) plugged into the lock opening (105) and the slot (402), and an arc portion (602) connected to the two latch portions (601).

4. The method for removing a slider using a non-ferromagnetic slider remover in a narrow space of a high-speed train set according to claim 3, characterized in that: Before pulling the extractor head (3), the latch portion (601) of the latch (6) is inserted into the lock (105) and the groove (402), the main body base (1) is mounted on the mounting portion (202) of the threaded body (2), and the threaded body (2) and the main body base (1) are pushed into the cavity as a whole using a flat-blade screwdriver. Since the lower surface of the main body base (1) is a sloped surface and the center of gravity of the slider (20) is on the left side of the roller (5), the slider (20) is in an upward angle posture in the cavity under the influence of gravity.

5. The method for removing a slider using a non-ferromagnetic slider remover in a narrow space of a high-speed train set according to claim 1, characterized in that: The outer diameter of the extractor head (3) is smaller than the outer diameter of the threaded body (2).

Images