Rail inspection instrument loading and unloading avoiding soft cable pulling cantilever mechanism

Abstract

The utility model belongs to track detection equipment technical field relates to a kind of soft connecting rope pulling cantilever mechanism for track detection instrument loading and unloading avoidance.The mechanism is constituted by machine body assembly, pulling assembly and transmission component.Machine body assembly includes track detector, sliding member, nitrogen spring etc.;Pulling assembly contains force arm, steel wire rope, pulling handle etc.;Transmission component includes moment link, transmission connecting piece etc.Through the cooperation of each component, the control and limit of the movement of sliding member are realized.The mechanism solves the problem of easy wear and breakage of steel wire rope during track detection instrument loading and unloading, laborious operation and insufficient equipment safety, improves the service life, operation convenience and loading and unloading safety of the equipment, and the comprehensive performance meets the use after 5000km technical verification, reduces the use cost by more than 20%.

Description

Technical Field

[0001] This application relates to the field of track inspection equipment technology, specifically to a cantilever mechanism for loading, unloading, and avoiding obstacles using a soft-connected rope. Background Technology

[0002] The existing flexible rope pulling cantilever mechanism for loading and unloading track inspection instruments has several unresolved issues. Firstly, during movement, the wire rope experiences angular friction with the lever arm and rope guide block, especially under the action of the nitrogen spring, accelerating fatigue damage and potentially leading to wear or even breakage, increasing operating costs and safety hazards. For example, during frequent loading and unloading, the wire rope may suddenly break due to excessive wear, affecting the normal operation of the inspection work. Secondly, the operation is laborious, placing a significant burden on the staff. Furthermore, the loading and unloading equipment lacks an effective self-locking structure, failing to guarantee the safety of the equipment during the loading and unloading process.

[0003] In conclusion, the existing soft-wire cantilever mechanism needs to be improved to meet people's needs. Summary of the Invention

[0004] The purpose of this application is to address the shortcomings of existing technologies by providing a soft-connected rope pulling cantilever mechanism that solves the problems of wire rope breakage due to friction and wear during the loading and unloading of track inspection instruments, laborious operation, and insufficient safety of loading and unloading equipment.

[0005] This application is achieved through the following technical solution:

[0006] A cantilever mechanism for loading, unloading, and avoiding obstacles using a soft-connected rope includes a body assembly, a pulling assembly, and a transmission assembly.

[0007] The machine body assembly includes a track detector, a sliding component, and a nitrogen spring. The pulling component is used to control the movement of the sliding component on the track detector.

[0008] The pulling assembly includes a lever arm, a wire rope, and a rope guide block. The wire rope is mounted on the rope guide block, and one end of the wire rope is fixedly mounted on a sliding member.

[0009] The transmission assembly includes a torque link, a transmission connector, and a linear optical shaft. The two ends of the torque link are rotatably connected to the outer end of the lever arm and the transmission connector, respectively. The transmission connector is sleeved on the linear optical shaft. The two ends of the linear optical shaft are mounted on the track detector. The torque link is fixedly connected to the end of the wire rope. The transmission connector pulls the wire rope and keeps it horizontal.

[0010] A self-locking limit block is fixedly installed on the track detector. The horizontal height of the self-locking limit block is lower than the rotation axis of the lever arm. The nitrogen spring is fixedly installed on the track detector to provide thrust for the sliding component. The wire rope, lever arm, nitrogen spring and self-locking limit block cooperate to provide self-locking capability.

[0011] Furthermore, the pulling assembly includes a pulling handle for manual control, the pivot of the pulling handle being fixedly connected to the lever arm, and the pivot of the pulling handle being rotatably mounted on the track detector.

[0012] Furthermore, both ends of the wire rope are fixed to the sliding member and the conductive connector respectively by plunger bolts.

[0013] Furthermore, the pulling assembly includes a rope guide block, which is mounted on the track detector to support and guide the movement of the wire rope and maintain its horizontal state.

[0014] Furthermore, the conductive assembly includes a sliding retaining ring and a slip ring, which are installed in the through hole of the conductive connector. The slip ring is provided with a plurality of sliders for contacting the linear optical axis, and the sliding retaining ring is used to fix the slip ring in the through hole of the conductive connector.

[0015] The technical solution provided in this application has the following advantages compared with the prior art:

[0016] 1. This application achieves horizontal movement of the wire rope by cooperating with the torque link, the transmission connector and the linear optical axis in the transmission assembly, and guiding the wire rope with the rope guide block. This solves the problem of easy wear and breakage of the wire rope due to angular force friction during movement, improves the service life of the wire rope and reduces the usage cost of the testing unit or institution by more than 20%.

[0017] 2. This application, by setting a pull handle connected to the lever arm and by rationally designing the lever arm, torque linkage and other structures, enables the operator to manually control the rotation of the lever arm to control the movement of the sliding part, thus solving the problem of laborious operation, improving the convenience of operation, and making the pulling operation relatively less strenuous.

[0018] 3. This application achieves the fixation of the position of components such as sliding parts and wire ropes by cooperating with the self-locking limit block, nitrogen spring, wire rope, lever arm, and torque linkage, which solves the problem of insufficient safety of loading and unloading equipment, improves the safety of loading and unloading equipment, and provides reliable protection for the safety of loading and unloading equipment. Attached Figure Description

[0019] To more clearly illustrate the technical solution of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the installation state structure of this application;

[0021] Figure 2 This is a schematic diagram of the isometric structure of this application;

[0022] Figure 3 This is a schematic diagram of the planar structure of this application;

[0023] Figure 4 This is a schematic diagram of the slip ring structure of this application;

[0024] Figure 5 This is a schematic diagram comparing the motion states of wire ropes in existing technologies.

[0025] In the diagram: 101-track detector; 102-sliding component; 103-linear guide rail; 104-track gauge sensor; 105-nitrogen spring; 201-pull handle; 202-lever arm; 203-wire rope; 204-rope guide block; 205-fastening screw; 301-torque connecting rod; 302-transmission connector; 303-sliding sleeve retaining ring; 304-linear optical axis; 305-fixed base; 306-slip ring; 401-self-locking limit block. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0028] like Figures 1 to 4 As shown, a cantilever mechanism for loading, unloading, and avoiding obstacles using a soft-connecting rope is characterized by comprising a body assembly, a pulling assembly, and a transmission assembly.

[0029] The machine assembly includes a track detector 101, a sliding member 102, and a nitrogen spring 105. The pulling assembly controls the movement of the sliding member 102 on the track detector 101. The machine assembly also includes a linear guide rail 103 and a track gauge sensor 104. The sliding member 102 is mounted on the linear guide rail 103 and connected to the detection rod of the track gauge sensor 104. The linear guide rail 103 and the track gauge sensor 104 are fixedly mounted on the track detector 101. When the sliding member 102 is pulled, it slides on the linear guide rail 103, and pushes the detection rod of the track gauge sensor 104 to move, adjusting the initial state of the track gauge sensor 104 for subsequent calculation of the sliding member 102's movement distance. During normal use and testing, the tension of the nitrogen spring 105 causes the top wheel on the sliding member 102 to contact the inner side of the track. During the operation of the equipment, changes in track position are detected by calibrating the relevant data acquisition and transmission system through track gauge sensors, thereby enabling the detection of track geometry.

[0030] The pulling assembly includes a lever arm 202, a wire rope 203, and a rope guide block 204. The wire rope 203 is mounted on the rope guide block 204, and one end of the wire rope 203 is fixedly mounted on the sliding member 102. The rope guide block 204 has two rollers. During installation, the wire rope 203 is inserted between the two rollers of the rope guide block 204. When the wire rope 203 is pulled, it moves between the two rollers. When the wire rope 203 is not kept horizontal, it will contact the two rollers of the rope guide block 204 when pulled, and this contact will continue. Continuing to pull the wire rope 203 will cause the rollers of the rope guide block 204 to rotate. Therefore, during equipment debugging, the horizontal installation of the wire rope 203 can be checked by observing whether the rollers of the rope guide block 204 are rotating.

[0031] The transmission assembly includes a torque link 301, a conductive connector 302, and a linear optical shaft 304. The two ends of the torque link 301 are rotatably connected to the outer end of the lever arm 202 and the conductive connector 302, respectively. The conductive connector 302 is sleeved on the linear optical shaft 304. The two ends of the linear optical shaft 304 are mounted on the track detector 101. A fixed seat 305 is provided at each end of the linear optical shaft 304, and the fixed seat 305 is bolted to the base plate of the track detector 101. The torque link 301 is fixedly connected to the end of the wire rope 203. The conductive connector 302 pulls the wire rope 203 and keeps it horizontal. Supported by the fixed seat 305, the horizontal height of the connection point of the conductive connector 302 is the same as the horizontal height of the connection point of the sliding member 102, thus keeping the wire rope 203 horizontal. During pulling, the wire rope 203 moves horizontally along its axis, preventing bending and wear.

[0032] A self-locking limit block 401 is fixedly installed on the track detector 101. The horizontal height of the self-locking limit block 401 is lower than the rotation axis of the lever arm 202. The nitrogen spring 105 is fixedly installed on the track detector 101 to provide thrust for the sliding component 102. The wire rope 203, lever arm 202, nitrogen spring 105 and self-locking limit block 401 cooperate to provide self-locking capability.

[0033] like Figure 2 As shown, the torque link 301 and the self-locking limit block 401 are located on the same vertical plane. That is, when the lever arm 202 rotates, the outer end face of the lever arm 202 will bring the right end of the torque link 301 close to and contact the self-locking limit block 401, thereby blocking the movement of the torque link 301 and playing a limiting role.

[0034] Specifically, when the lever arm 202 rotates, it pulls the right end of the torque link 301 through its outer end, and the left end of the torque link 301 pulls the transmission connector 302. The transmission connector 302 slides horizontally on the linear optical axis 304, and the transmission connector 302 pulls the wire rope 203. The left end of the wire rope 203 then pulls the sliding member 102 to move. When the outer end of the lever arm 202 moves from the upper side of the rotation axis of the lever arm 202 to the horizontal position, that is, the axis of the outer end of the lever arm 202, the rotation axis of the lever arm 202, the line connecting the two ends of the torque link 301, and the axis of the wire rope 203 are all in a straight line, when the lever arm 202 continues to rotate, the outer end of the lever arm 202 and the torque link 304 are aligned. The right end of the sliding member 102 moves to the lower side of the rotation axis of the lever arm 202. The nitrogen spring 105 connected to the sliding member 102 provides a thrust to the sliding member 102, so the lever arm 202 will continue to rotate under the force, that is, rotate towards the self-locking limit block 401. This automatically drives the right end of the torque link 301 to move, so that the right end of the torque link 301 contacts the self-locking limit block 401. After contact, the self-locking limit block 401 blocks the right end of the torque link 301, restricts the rotation of the lever arm 202, and cooperates with the thrust of the nitrogen spring 105 to fix the position of the sliding member 102, the wire rope 203, the torque link 301, the transmission connector 302, and the lever arm 202.

[0035] like Figures 1 to 3 As shown, the pulling assembly includes a pull handle 201 for manual control. The pivot of the pull handle 201 is fixedly connected to the lever arm 202, and the pivot of the pull handle 201 is rotatably mounted on the track detector 101. The pull handle 201 is located on the outside of the track detector 101 and is used by the operator to control the rotation of the lever arm 202. A convex shaft is provided on the outer end of the lever arm 202 away from the pull handle 201. The right end of the torque link 301 is rotatably mounted on the convex shaft, causing the torque link 301 to be misaligned with the lever arm 202, so that the torque link 301 passes the rotation center of the lever arm 202 and contacts the self-locking limit block 401.

[0036] like Figures 1 to 4 As shown, both ends of the steel wire rope 203 are fixed to the sliding member 102 and the conductive connector 302 respectively by plunger bolts. The plunger bolts are purchased parts made of 304 stainless steel with a linear optical axis.

[0037] like Figures 1 to 3 As shown, the pulling assembly includes a rope guide block 204, which is mounted on the track detector 101 to support and guide the movement of the wire rope 203, maintaining the wire rope 203 in a horizontal state. The rope guide block 204 is made of 6061-T651 aerospace aluminum alloy, and after being machined by a CNC850 high-precision CNC machine tool, it undergoes sandblasting, tri-acid polishing, and oxidation treatment.

[0038] like Figure 4 As shown, the conductive assembly includes a sliding retaining ring 303 and a slip ring 306. The sliding retaining ring 303 and the slip ring 306 are installed in the through hole of the conductive connector 302. The slip ring 306 is provided with a plurality of sliders for contacting the linear optical axis 304. The sliding retaining ring 303 is used to fix the slip ring 306 in the through hole of the conductive connector 302.

[0039] Specifically, a stepped ring, i.e., a slip ring 306, is provided at the left end of the through hole of the conductive connector 302. When the right end is inserted, it will contact the stepped ring at the left end, thus blocking the slip ring 306. The right end of the slip ring 306 is blocked by the sliding sleeve retaining ring 303. The elasticity of the sliding sleeve retaining ring 303 makes it tightly contact the inner wall of the through hole of the conductive connector 302, thereby restricting the slip ring 306 in the through hole, blocking its outlet, and preventing it from detaching.

[0040] The linear optical axis 304 and the slip ring 306 are made of high-carbon steel purchased standard parts, and the sliding sleeve retaining ring 303 is made of stainless steel purchased standard parts. The multiple sliders on the slip ring 306 are trapezoidal, that is, the end of the slip ring 306 that contacts the outer wall of the linear optical axis 304 has a narrow end face, thereby reducing the friction between the linear optical axis 304 and the slip ring 306. The annular arrangement of the multiple sliders and the length setting of the conductive connector 302 and the slip ring 306 can ensure the spatial stability of the horizontal movement of the conductive connector 302. That is, the conductive connector 302 maintains lateral movement in the vertical plane and will not wobble in other directions, and eliminates the force friction caused by circumferential errors during movement.

[0041] In actual use, if it is necessary to adjust the effective stroke size of the sliding component 102, it can be done by replacing the torque connecting rod 301 of different sizes or adjusting the initial position of the transmission connector 302 and the lever arm 202. This is more convenient and accurate than the calculation of the rope curve unfolding.

[0042] like Figure 5 As shown, in the prior art, the rotation angle of the lever arm 202 is directly connected to the outer end of the lever arm 202 via a steel wire rope 203, which in turn pulls the steel wire rope 203. This pulls the sliding member 102, causing the track top wheel on the sliding member 102 to be pulled to the inner side of the track. After the detection point of the instrument / equipment safely enters the inner range of the track, the sliding member 102, under the thrust of the nitrogen spring 105, remains in contact with the inner reference position of the track. However, in the prior art, during the movement of the steel wire rope 203, there is a risk of friction between the lever arm 202 and the rope guide block 204 due to angular force. Furthermore, under the action of the nitrogen spring 105, this friction can accelerate the fatigue damage of the steel wire rope 203.

[0043] like Figure 5As shown, the wire rope 203 has a bent structure during use, which changes its direction of movement and the force it experiences. The friction between the wire rope 203 and the rope guide block 204 is significant, and long-term use will cause wear on the wire rope 203, leading to a risk of breakage. Figure 3 As shown, this application uses a pulling component to keep the wire rope 203 moving horizontally, avoiding unnecessary friction on the wire rope 203, improving its service life, and facilitating the adjustment of the effective stroke under various working conditions.

[0044] The technical solution applied for has undergone 5,000 kilometers of technical verification, and its overall performance fully meets the requirements for use. The pulling operation requires relatively less effort and effectively solves the problem of wire rope wear and breakage. It reduces the operating costs for testing units or institutions by more than 20%. In particular, the self-locking technology provides reliable protection for the safety of loading and unloading equipment.

[0045] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A cantilever mechanism for loading, unloading, and avoiding obstacles using flexible ropes, characterized in that, Includes body components, pulling components, and transmission components; The body assembly includes a track detector (101), a sliding component (102), and a nitrogen spring (105). The pulling assembly is used to control the sliding component (102) to move on the track detector (101). The pulling assembly includes a lever arm (202), a wire rope (203), and a rope guide block (204). The wire rope (203) is mounted on the rope guide block (204), and one end of the wire rope (203) is fixedly mounted on the sliding member (102). The transmission assembly includes a torque link (301), a transmission connector (302), and a linear optical axis (304). The two ends of the torque link (301) are rotatably connected to the outer end of the lever arm (202) and the transmission connector (302), respectively. The transmission connector (302) is sleeved on the linear optical axis (304). The two ends of the linear optical axis (304) are mounted on the track detector (101). The torque link (301) is fixedly connected to the end of the wire rope (203). The transmission connector (302) pulls the wire rope (203) and keeps it horizontal. A self-locking limit block (401) is fixedly installed on the track detector (101). The horizontal height of the self-locking limit block (401) is lower than the rotation axis of the lever arm (202). The nitrogen spring (105) is fixedly installed on the track detector (101) to provide thrust for the sliding component (102). The wire rope (203), lever arm (202), nitrogen spring (105) and self-locking limit block (401) cooperate to provide self-locking capability.

2. The cantilever mechanism for loading, unloading, and avoiding obstacles of track inspection instruments according to claim 1, characterized in that, The pulling assembly includes a pulling handle (201) for manual control. The shaft of the pulling handle (201) is fixedly connected to the lever arm (202). The shaft of the pulling handle (201) is rotatably mounted on the track detector (101).

3. The cantilever mechanism for loading, unloading, and avoiding obstacles of track inspection instruments according to claim 1, characterized in that, The two ends of the wire rope (203) are fixed to the sliding member (102) and the conductive connector (302) respectively by plunger bolts.

4. The cantilever mechanism for loading, unloading, and avoiding obstacles of track inspection instruments according to claim 1, characterized in that, The pulling assembly includes a rope guide block (204), which is mounted on the track detector (101) to support and guide the movement of the wire rope (203) and maintain the horizontal state of the wire rope (203).

5. The cantilever mechanism for loading, unloading, and avoiding obstacles of track inspection instruments according to claim 1, characterized in that, The conductive assembly includes a sliding retaining ring (303) and a slip ring (306). The sliding retaining ring (303) and the slip ring (306) are installed in the through hole of the conductive connector (302). The slip ring (306) is provided with a plurality of sliders for contacting the linear optical axis (304). The sliding retaining ring (303) is used to fix the slip ring (306) in the through hole of the conductive connector (302).

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