Crimping and quick-changing device for integral dropper of overhead line system

Abstract

The invention belongs to the technical field of dropper crimping devices, and particularly relates to a catenary integral dropper crimping quick-change device which comprises a main platform and a heart-shaped ring / crimping pipe spacing control mechanism mounted at the top of the main platform, and a hydraulic cylinder and a limiting positioning block are mounted at the top of the heart-shaped ring / crimping pipe spacing control mechanism. Quick-change transition block assemblies capable of relatively moving and clamping are inserted into the opposite ends between the hydraulic cylinder and the limiting positioning block, and a crimping die is movably mounted in each quick-change transition block assembly. According to the automatic crimping device, the automatic crimping process of crimping pipes and crimping terminals is achieved, the design of a limiting mechanism, a jacking guide mechanism, a transition wheel and the like is arranged to achieve stable and effective operation of the crimping process and reduce damage of the crimping process to droppers, and the technical highlights that different crimping dies are rapidly replaced, and the distance between heart-shaped rings and the crimping pipes is continuously adjustable are achieved; the working intensity of production personnel is reduced, and the current collection quality and service life are improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of suspension clamp crimping devices, and particularly relates to a quick-change device for crimping integral catenary suspension clamps. Background Art

[0002] The catenary is an important part of an electrified railway, responsible for transmitting electric power from a traction substation to an electric locomotive. It is a key energy supply system for the operation of electric locomotives. The integral suspension clamp is a key component in the catenary. Through it, the contact wire is suspended on the carrier cable, playing a role in supporting and adjusting the position of the contact wire. The performance of the integral suspension clamp directly affects the elasticity, stability, and service life of the catenary.

[0003] The crimping process is the most important technological link in the pre-assembly process of integral suspension clamps. Through hydraulic pressure acting on the crimping die, elastic-plastic deformation is generated between the crimping tube and the suspension clamp cable, and between the crimping terminal and the suspension clamp cable. Finally, the connection of the crimping tube, crimping terminal, and suspension clamp cable is achieved, and the relative positional relationship among the crimping tube, crimping terminal, and heart-shaped loop is fixed, and the purpose of determining the length of the suspension clamp is achieved.

[0004] Problems existing in the prior art:

[0005] The traditional crimping process is manually crimped by hand, requiring multiple people to operate. Manually crimping and pre-assembling suspension clamps takes an average of more than 2 minutes and has defects such as low pre-assembly accuracy and eccentricity of the heart-shaped loop. The existing crimping device on the suspension clamp pre-assembly platform automatically crimps through hydraulic pressure acting on the crimping die. However, the crimping die can only use a set of specifically designed crimping dies for machining, and cannot adapt to crimping dies with different external shapes and specifications provided by different suppliers, and cannot meet the complex and changing multi-condition environments in the modernization construction of high-speed railways. Summary of the Invention

[0006] The purpose of the present invention is to provide a quick-change device for crimping integral catenary suspension clamps, which can realize the automatic crimping process of the crimping tube and crimping terminal, and has a limit mechanism, a lifting and guiding mechanism, a transition wheel, etc. to realize the smooth and effective operation of the crimping process and reduce the damage caused by the crimping process to the suspension clamp itself. It has technical highlights such as quick replacement of different crimping dies, continuously adjustable distance between the heart-shaped loop / crimping tube, reduces the working intensity of production personnel, and improves the current collection quality and service life.

[0007] The technical solution adopted by the present invention is specifically as follows:

[0008] A quick-change device for crimping integral catenary suspension clamps, including a main platform

[0009] and a heart-shaped ring / crimping tube spacing control mechanism installed on the top of the main platform, a hydraulic cylinder and a limit positioning block are installed on the top of the heart-shaped ring / crimping tube spacing control mechanism, a quick-change transition block assembly for relative motion clamping is inserted between the opposite ends of the hydraulic cylinder and the limit positioning block, and a crimping die is movably installed inside the quick-change transition block assembly;

[0010] A heart-shaped ring spindle block is provided on one side of the crimping die, and a lifting guide mechanism and a cylinder are provided on the other side of the crimping die. The top of the lifting guide mechanism moves in the vertical and horizontal directions, and the top block fixed at the output end of the cylinder moves in the horizontal direction. A transition wheel is also provided on the top of the main platform corresponding to the top side of the lifting guide mechanism.

[0011] A transmission block is fixed to the output end of the hydraulic cylinder, and the limit positioning block is fixedly installed on the top of the main platform. Corresponding slots are provided at the opposite ends of the transmission block and the limit positioning block, and the divergent ends of the quick-change transition block assemblies on both sides are coupled with the slots. The crimping mold movably installed inside the quick-change transition block assembly includes a plurality of crimping tube crimping molds and a plurality of crimping terminal crimping molds. A first crimping tube quick-change transition block assembly, a second crimping tube quick-change transition block assembly and a third crimping tube quick-change transition block assembly are respectively provided corresponding to the plurality of crimping tube crimping molds, and a first crimping terminal quick-change transition block assembly, a second crimping terminal quick-change transition block assembly and a third crimping terminal quick-change transition assembly are respectively provided corresponding to the plurality of crimping terminal crimping molds.

[0012] The heart-shaped ring spindle block is fixedly installed on the top of the main platform, and the main platform is provided with a pin hole on one side of the bottom of the heart-shaped ring spindle block, the bottom end of the heart-shaped ring spindle block is plugged into the top of the main platform, and a pin is inserted into the pin hole to fix the heart-shaped ring spindle block and the main platform, and a limiting mechanism for vertical lifting movement is also fixedly installed on the top of the main platform, and the limiting mechanism movably abuts against the top of the heart-shaped ring spindle block.

[0013] The heart-shaped ring / crimping tube spacing control mechanism includes a servo motor and a screw rod that is transmission-connected to the servo motor; a guide rail is fixed to the top of the main platform; a crimping platform is slidably mounted on the top of the guide rail; the bottom of the crimping platform is threadedly connected to the screw rod; and the servo motor is fixedly mounted to the top of the main platform.

[0014] The quick-change transition block assemblies on both sides are respectively fixedly installed with pressure blocks at the top of the coupling positions of the transmission block and the limit positioning block, and the cylinder is fixedly installed on the side of the limit positioning block by means of hexagon socket bolts.

[0015] A lifting action block is fixedly installed on one side of the lifting guide mechanism adjacent to the lifting block, and the lifting action block is driven to move in vertical and horizontal directions by the lifting guide mechanism.

[0016] The crimping die for the crimping tube includes a first crimping die for the crimping tube, a second crimping die for the crimping tube, and a third crimping die for the crimping tube;

[0017] The first crimping tube quick-change transition block assembly corresponding to the two first crimping dies for the crimping tube includes a first part of the transition block assembly and a second part of the transition block assembly;

[0018] The second crimping tube quick-change transition block assembly corresponding to the two second crimping dies for the crimping tube includes a first part of the second quick-change transition block and a second part of the second quick-change transition block. The second part of the second quick-change transition block is provided with a protruding part, and the protruding part is inserted and connected with one of the second crimping dies for the crimping tube;

[0019] The third crimping tube quick-change transition block assembly corresponding to the two third crimping dies for the crimping tube includes a first part of the third quick-change transition block and a second part of the third quick-change transition block. The third crimping die for the crimping tube is inserted from the side of the first part of the third quick-change transition block or the second part of the third quick-change transition block.

[0020] The crimping die for the crimping terminal includes a first crimping die for the crimping terminal, a second crimping die for the crimping terminal, and a third crimping die for the crimping terminal;

[0021] The first crimping terminal quick-change transition block assembly corresponding to the two first crimping dies for the crimping terminal includes a first part of the terminal quick-change block and a second part of the terminal quick-change block;

[0022] The second crimping terminal quick-change transition block assembly corresponding to the two second crimping dies for the crimping terminal includes a first part of the second terminal quick-change block and a second part of the second terminal quick-change block;

[0023] The third crimping terminal quick-change transition assembly corresponding to the two third crimping dies for the crimping terminal has the same structure as the third crimping tube quick-change transition block assembly.

[0024] The connection method between the crimping die and the quick-change transition block assembly includes any one of movable insertion, bolt thread installation, and magnetic connection.

[0025] The diameter of the inscribed circle of the cross-section of the crimping groove in the middle of the two opposite crimping dies for the crimping tube is not equal to the diameter of the inscribed circle of the cross-section of the crimping groove in the middle of the two opposite crimping dies for the crimping terminal.

[0026] The technical effects achieved by the present invention are as follows:

[0027] The present invention realizes the automatic crimping in the process of crimping the suspension string, reduces the labor intensity of production personnel, and improves the production efficiency.

[0028] The present invention adopts a three-stage connection method of hydraulic cylinder - quick-change transition block - crimping die, which is adapted to different crimping dies, and is convenient for production personnel to select different crimping dies according to the actual situation and perform quick replacement.

[0029] In the present invention, a control mechanism for the distance between the heart-shaped ring and the compression joint tube is designed to achieve continuously adjustable distance between the heart-shaped ring and the compression joint tube, and suspension strings with different distances are produced according to on-site requirements to adapt to complex and changeable multi-working conditions environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic structural diagram of the quick-change device for crimping the integral suspension string of the catenary of the present invention; Figure One ;

[0031] Figure 2 is a schematic structural diagram of the quick-change device for crimping the integral suspension string of the catenary of the present invention; Figure Two ;

[0032] Figure 3 is an enlarged view of the structure at the crimping die of the quick-change device for crimping the integral suspension string of the catenary of the present invention;

[0033] Figure 4 is a schematic structural diagram of the first compression joint tube crimping die of the present invention;

[0034] Figure 5 is a schematic structural diagram of the first compression joint tube quick-change transition block assembly of the present invention;

[0035] Figure 6 is a schematic structural diagram of the second compression joint tube crimping die of the present invention;

[0036] Figure 7 is a schematic structural diagram of the second compression joint tube quick-change transition block assembly of the present invention;

[0037] Figure 8 is a schematic structural diagram of the third compression joint tube crimping die of the present invention;

[0038] Figure 9 is a schematic structural diagram of the third compression joint tube quick-change transition block assembly of the present invention;

[0039] Figure 10 is a schematic structural diagram of the first crimping terminal crimping die of the present invention;

[0040] Figure 11 is a schematic structural diagram of the second crimping terminal crimping die of the present invention;

[0041] Figure 12 is a schematic structural diagram of the first compression joint tube crimping die of the present invention;

[0042] Figure 13 is a schematic diagram of the two-part structure of the first terminal quick-change block of the present invention;

[0043] Figure 14 is a schematic diagram of the two-part structure of the second terminal quick-change block of the present invention;

[0044] Figure 15 This is a schematic diagram of the shared quick-change transition block structure of the present invention.

[0045] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0046] 1. Hydraulic cylinder;

[0047] 2. Crimping die; 21. First crimping die for crimping tube; 211. First tube-shaped groove; 22. Second crimping die for crimping tube; 221. Second tube-shaped groove; 23. Third crimping die for crimping tube; 231. Third tube-shaped groove; 24. First crimping die for crimping terminal; 241. First terminal-shaped groove; 25. Second crimping die for crimping terminal; 251. Second terminal-shaped groove; 26. Third crimping die for crimping terminal; 261. Third terminal-shaped groove;

[0048] 3. Quick-change transition block assembly; 31. First quick-change transition block assembly for crimping tube; 311. First part of the first transition block assembly; 312. Second part of the first transition block assembly; 32. Second quick-change transition block assembly for crimping tube; 321. First part of the second quick-change transition block; 322. Second part of the second quick-change transition block; 33. Third quick-change transition block assembly for crimping tube; 331. First part of the third quick-change transition block; 332. Second part of the third quick-change transition block; 34. First quick-change transition block assembly for crimping terminal; 341. First part of the first terminal quick-change block; 342. Second part of the first terminal quick-change block; 35. Second quick-change transition block assembly for crimping terminal; 351. First part of the second terminal quick-change block; 352. Second part of the second terminal quick-change block; 36. Third quick-change transition assembly for crimping terminal; 361. Shared quick-change transition block;

[0049] 4. Limiting mechanism; 5. Heart-shaped ring spindle block; 6. Jacking guiding mechanism; 61. Jacking action block; 7. Transition wheel; 8. Main platform; 81. Pin hole;

[0050] 9. Heart-shaped ring / crimping tube spacing control mechanism; 91. Servo motor; 92. Lead screw; 93. Guide rail; 94. Crimping platform;

[0051] 10. Pressing block; 11. Transmission block; 12. Cylinder; 121. Top block; 13. Sensor; 14. Limiting and positioning block. Specific embodiments

[0052] In order to make the purpose and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with embodiments. It should be understood that the following text only describes one or several specific implementation manners of the present invention, and does not strictly limit the scope of protection specifically claimed by the present invention.

[0053] As Figures 1-3As shown, a contact network integral suspension string crimping quick-change device comprises a main platform 8 and a heart-shaped ring / crimping tube spacing control mechanism 9 installed on the top of the main platform 8, a hydraulic cylinder 1 and a limit positioning block 14 are installed on the top of the heart-shaped ring / crimping tube spacing control mechanism 9, and a quick-change transition block assembly 3 for relative motion clamping is inserted between the opposite ends of the hydraulic cylinder 1 and the limit positioning block 14, and a crimping mold 2 is movably installed inside the quick-change transition block assembly 3.

[0054] Among them, the heart-shaped ring / crimping tube spacing control mechanism 9 includes a servo motor 91 and a screw rod 92 that is transmission-connected to the servo motor 91. A guide rail 93 is fixed to the top of the main platform 8, and a crimping platform 94 is slidably installed on the top of the guide rail 93. The bottom of the crimping platform 94 is threadedly connected to the screw rod 92, and the servo motor 91 is fixedly installed on the top of the main platform 8.

[0055] According to the above structure, the servo motor 91 drives the screw rod 92 to rotate, so that the crimping platform 94 moves along the guide rail 93. By controlling the lengths of different crimping processes, the movement distance of the crimping platform 94 is controlled, thereby achieving continuous controllable distance between the heart-shaped ring spindle block 5 and the crimping mold 2. During use, the control system is a platform hydraulic system.

[0056] Furthermore, the platform hydraulic system includes a power element, an actuator, a control element, an auxiliary element and a liquid medium. The power element takes the hydraulic cylinder 1 as the core of the system, and is used to convert mechanical energy into liquid pressure energy to provide sufficient pressure for the extrusion between the crimping dies 2 on both sides and the quick-change transition block assembly 3. In the present application, the hydraulic cylinder 1 includes but is not limited to a gear pump, a vane pump, and a plunger pump. By selecting hydraulic cylinders 1 with different output powers according to different working conditions, the actuator is used to convert the hydraulic pressure output by the hydraulic cylinder 1 into mechanical energy. The control element includes at least a control system, a system for adjusting the direction of action of the hydraulic cylinder 1, a pressure output power system, and an output stroke distance system. It also includes at least one computer system for modifying, running, outputting results, and detecting data in the control element. The auxiliary elements include a lubrication system, a cleaning system, a hydraulic detection system, etc., which are used to assist the stable operation of the power element, the actuator and the control element.

[0057] Furthermore, at least two guide rails 93 are provided, and the two guide rails 93 are arranged in parallel, and the screw rod 92 is also in parallel with the guide rails 93 .

[0058] The platform hydraulic system is used not only to operate the heart-shaped ring / compression tube spacing control mechanism 9 , but also to assist in the movement of the limiting mechanism 4 , so as to realize the lifting and lowering positioning of the heart-shaped ring spindle block 5 of the limiting mechanism 4 .

[0059] Please refer to further Figures 1-3, a heart-shaped ring spindle block 5 is arranged on one side corresponding to the crimping die 2, and a jacking guiding mechanism 6 and a cylinder 12 are arranged on the other side corresponding to the crimping die 2. The top of the jacking guiding mechanism 6 moves along the vertical and horizontal directions, and the top block 121 fixed to the output end of the cylinder 12 moves along the horizontal direction. A transition wheel 7 is also arranged on the top of the main platform 8 on one side corresponding to the top of the jacking guiding mechanism 6.

[0060] Further, the jacking guiding mechanism 6 is used to lift and hold the cable after the suspension string passes through the crimping die 2 to prevent the cable from moving and causing the assembly process to fail.

[0061] Further, the transition wheel 7 is used to guide the suspension string cable to prevent cable damage caused by too large a bend angle. At the same time, the existence of the transition wheel 7 can make the force directions on both sides of the heart-shaped ring as parallel as possible, reducing the deflection of the heart-shaped ring. During the extrusion process of the two-sided crimping die 2, and due to the stress change existing in the suspension string cable itself, the suspension string cables on both sides of the crimping die 2 will be twisted and bent. Therefore, the heart-shaped ring spindle block 5 can not only position the cable, but also assist in the process of the crimping die 2 extruding the suspension string cable. For the bending and large-angle twisting of the suspension string cable on the other side, the positioning of the bending direction is achieved through the jacking guiding mechanism 6 and the transition wheel 7.

[0062] Further, a jacking action block 61 is fixedly installed on one side of the jacking guiding mechanism 6 adjacent to the top block 121. The jacking action block 61 is driven by the jacking guiding mechanism 6 to move in the vertical and horizontal directions. The side or top of the jacking action block 61 is set as a plane adapted to the extension direction of the suspension string cable, and in cooperation with the lifting adjustment of the jacking guiding mechanism 6, further positioning is achieved in cooperation with the extrusion of the top block 121 at the end of the cylinder 12.

[0063] Furthermore, the material of the end of the set top block 121 includes, but is not limited to, metal, plastic or rubber materials. After the suspension string cable is bent, it can also be corrected to a straight state by the clamping of the bending part by the crimping die 2, or the bending part can be corrected to a straight state by the reciprocating hammering of the suspension string cable by the top block 121.

[0064] Further refer to Figures 1-3 , the heart-shaped ring spindle block 5 is fixedly installed on the top of the main platform 8, and a pin hole 81 is opened on one side of the bottom of the main platform 8 where the heart-shaped ring spindle block 5 is located. The bottom end of the heart-shaped ring spindle block 5 is inserted into the top of the main platform 8, and a pin is inserted into the pin hole 81 to fixedly insert the heart-shaped ring spindle block 5 and the main platform 8. A limiting mechanism 4 that moves vertically is also fixedly installed on the top of the main platform 8, and the limiting mechanism 4 is movably abutted against the top of the heart-shaped ring spindle block 5.

[0065] Furthermore, the bottom of the heart-shaped ring spindle block 5 is configured as an extended column, which is used to be plugged into the top of the main platform 8 and extended to be plugged into the inner side of the pin hole 81. By using a pin to position inside the pin hole 81, the heart-shaped ring spindle block 5 and the main platform 8 can be fixedly installed. In addition, the connection method between the heart-shaped ring spindle block 5 and the main platform 8 can also include a magnetic connection, a threaded connection, etc. after the heart-shaped ring spindle block 5 and the main platform 8 are plugged in.

[0066] Among them, the hydraulic cylinder 1 is the power element and actuator of the platform hydraulic system, which is used to perform extrusion, squeezing and shaping of the terminal or tube body. By pushing one side of the crimping die 2 and the quick-change transition block assembly 3, it performs relative movement and extrusion with the other side of the crimping die 2 and the quick-change transition block assembly 3.

[0067] After adjusting the distance between the crimping die 2 and the heart-shaped ring spindle block 5 by the heart-shaped ring / crimping tube spacing control mechanism 9, the positioning extrusion of the annular structure installed on the top of the heart-shaped ring spindle block 5 is achieved by the limiting mechanism 4. During the operation of the hydraulic cylinder 1, the distance between the crimping die 2 and the heart-shaped ring spindle block 5 can also be adjusted by the heart-shaped ring / crimping tube spacing control mechanism 9 to achieve crimping of crimping products of different specifications or crimping of different positions of the crimping products.

[0068] Please refer to Figure 2 and Figure 3 The output end of the hydraulic cylinder 1 is fixed with a transmission block 11, and the limit positioning block 14 is fixedly installed on the top of the main platform 8. The transmission block 11 and the opposite ends of the limit positioning block 14 are provided with corresponding slots, and the departing ends of the quick-change transition block assemblies 3 on both sides are coupled with the slots. The slots can be selected as dovetail slots, and there are two setting directions of the dovetail slots, one is vertically penetrating through the sides of the transmission block 11 and the limit positioning block 14, and the other is non-vertically penetrating through the sides of the transmission block 11 and the limit positioning block 14, including but not limited to, the dovetail slot is horizontal and inclined relative to the sides of the transmission block 11 and the limit positioning block 14, and the two opposite dovetail slots are arranged in parallel, and the quick-change transition block assemblies 3 on both sides are respectively fixedly installed with pressure blocks 10 at the top of the coupling positions of the transmission block 11 and the limit positioning block 14, and the installation method of the pressure block 10 is to use hexagon socket bolts to achieve fixed installation, and the cylinder 12 is fixedly installed on the side of the limit positioning block 14 by hexagon socket bolts.

[0069] Furthermore, the crimping die 2 movably installed inside the quick-change transition block assembly 3 includes a plurality of crimping tube crimping dies and a plurality of crimping terminal crimping dies.

[0070] Furthermore, a first crimping tube quick-change transition block assembly 31, a second crimping tube quick-change transition block assembly 32 and a third crimping tube quick-change transition block assembly 33 are respectively provided corresponding to the multiple crimping tube crimping dies, and a first crimping terminal quick-change transition block assembly 34, a second crimping terminal quick-change transition block assembly 35 and a third crimping terminal quick-change transition assembly 36 are respectively provided corresponding to the multiple crimping terminal crimping molds.

[0071] Furthermore, the diameter of the inscribed circle of the cross section of the crimping groove in the middle of the two opposite crimping tube crimping molds is not equal to the diameter of the inscribed circle of the cross section of the crimping groove in the middle of the two opposite crimping terminal crimping molds.

[0072] According to the above structure:

[0073] The crimping tube crimping mold includes a first crimping tube crimping mold 21 , a second crimping tube crimping mold 22 and a third crimping tube crimping mold 23 .

[0074] Embodiment 1:

[0075] Please refer to Figure 4 and Figure 5 The first crimping tube quick-change transition block assembly 31 corresponding to the two first crimping tube crimping dies 21 includes a first transition block assembly part 1 311 and a first transition block assembly part 2 312 .

[0076] The structural form of the first transition block component part 311 is that one side of the first transition block component part 311 is arranged with a dovetail tenon which fits with the dovetail groove, and the side away from the dovetail tenon is a groove for clamping the first crimping tube crimping mold 21 on one side, and the first crimping tube crimping mold 21 is positioned by the groove, and the first crimping tube crimping mold 21 on the other side is fixedly mounted on the surface of the first transition block component part 312, and corresponding first tube-shaped grooves 211 are provided in the middle of the opposite ends of the first crimping tube crimping molds 21 on both sides.

[0077] Embodiment 2:

[0078] Please refer to Figure 6 and Figure 7 The second crimping tube quick-change transition block assembly 32 corresponding to the two second crimping tube crimping dies 22 includes a second quick-change transition block part 321 and a second quick-change transition block part 322. The second quick-change transition block part 322 is provided with a protruding component, which is plugged and connected to one of the second crimping tube crimping dies 22.

[0079] The second crimping die 22 on one side is provided with a jack corresponding to the protruding part of the second quick-change transition block part two 322. The inside of the jack is used for inserting a pin or installing a bolt, so as to realize the fixed installation between the second quick-change transition block part two 322 and the second crimping die 22. A cross-shaped groove for fitting with the end of the second crimping die 22 is provided on the side of the first part of the second quick-change transition block 321 away from the dovetail tenon, to realize the positioning of the second crimping die 22. Corresponding second pipe-shaped grooves 221 are provided in the middle of the opposite sides of the two second crimping dies 22.

[0080] Embodiment Three:

[0081] Please refer to Figure 8 and Figure 9 As shown in the figure, the third crimping tube quick-change transition block assembly 33 corresponding to the two third crimping dies 23 includes a first part of the third quick-change transition block 331 and a second part of the third quick-change transition block 332. The third crimping die 23 is inserted from the side of the first part of the third quick-change transition block 331 or the second part of the third quick-change transition block 332.

[0082] Semicircular installation grooves are provided on the corresponding sides of the first part of the third quick-change transition block 331 and the second part of the third quick-change transition block 332 on both sides, for inserting the two oppositely arranged third crimping dies 23 respectively. Corresponding third pipe-shaped grooves 231 are provided in the middle of the opposite sides of the third crimping dies 23. Protrusions and depressions are respectively provided between the two third crimping dies 23 on both sides for realizing coupling connection. The coupling connection provided on the opposite sides is used to improve the stability of the suspension cable during the crimping process and the position docking stability between the two third crimping dies 23 on both sides.

[0083] Furthermore, please refer to Figures 10-15 As shown in the figure, the crimping terminal crimping die includes a first crimping terminal crimping die 24, a second crimping terminal crimping die 25 and a third crimping terminal crimping die 26.

[0084] Embodiment Four:

[0085] Please refer to Figure 10 and Figure 13 As shown in the figure, the first crimping terminal quick-change transition block assembly 34 corresponding to the two first crimping terminal crimping dies 24 includes a first part of the terminal quick-change block 341 and a second part of the terminal quick-change block 342.

[0086] The installation method between the first crimping terminal crimping die 24 and the first terminal quick-change block part one 341 and the first terminal quick-change block part two 342 on both sides is the same as that of the first embodiment. The difference is that the opening shapes of the first terminal groove 241 and the first tube groove 211 are different, and the opening sizes between the first terminal groove 241 and the first tube groove 211 are different. This embodiment and the first embodiment form a set of crimping combinations;

[0087] For example, first crimp the suspension cable through the first tube groove 211, sleeve on the ferrule, and then further crimp through the first terminal groove 241;

[0088] For example, first crimp the suspension cable through the first terminal groove 241, sleeve on the ferrule, and then further crimp through the first tube groove 211.

[0089] Embodiment Five:

[0090] Please refer to Figure 11 and Figure 14 , the second crimping terminal quick-change transition block assembly 35 corresponding to the two second crimping terminal crimping dies 25 includes a second terminal quick-change block part one 351 and a second terminal quick-change block part two 352.

[0091] The installation method between the second crimping terminal crimping die 25 and the second terminal quick-change block part one 351 and the second terminal quick-change block part two 352 on both sides is the same as that of the second embodiment. The difference is that the opening shapes of the second terminal groove 251 and the second tube groove 221 are different, and the opening sizes between the second terminal groove 251 and the second tube groove 221 are different. This embodiment and the second embodiment form a set of crimping combinations;

[0092] For example, first crimp the suspension cable through the second tube groove 221, sleeve on the ferrule, and then further crimp through the second terminal groove 251;

[0093] For example, first crimp the suspension cable through the second terminal groove 251, sleeve on the ferrule, and then further crimp through the second tube groove 221.

[0094] Embodiment Six:

[0095] Please refer to Figure 12 and Figure 9 , the third crimping terminal quick-change transition assembly 36 corresponding to the two third crimping terminal crimping dies 26 has the same structure as the third crimping tube quick-change transition block assembly 33.

[0096] The third crimping terminal quick-change transition component 36 in this embodiment is the same as the third crimping tube quick-change transition block component 33 in Embodiment 3. The two correspondingly arranged third crimping terminal crimping dies 26 are the same in structure as the third tube-shaped groove 231 in Embodiment 3, except that their sizes are different. This embodiment and Embodiment 3 form a set of crimping combinations;

[0097] For example, the suspension cable is first crimped through the third tube-shaped groove 231, and a ferrule is sleeved on it, and further crimped through the third terminal-shaped groove 261;

[0098] For example, the suspension cable is first crimped through the third terminal-shaped groove 261, and a ferrule is sleeved on it, and further crimped through the third tube-shaped groove 231.

[0099] In Embodiment 4 and Embodiment 5, on the other side of the first terminal quick-change block second part 342, the first terminal quick-change block first part 341 and on the other side of the second terminal quick-change block second part 352, the second terminal quick-change block first part 351, the combined structure of the two is a shared quick-change transition block 361 (here for reference Figures 13-15 ), and the use of the shared quick-change transition block 361 can achieve the replacement between the first terminal quick-change block first part 341 and the second terminal quick-change block first part 351, for realizing general replacement during use.

[0100] According to the above Embodiments 1 to 6, the connection method between the crimping die 2 and the quick-change transition block component 3 includes any one of movable insertion, bolt screw installation, and magnetic attraction connection.

[0101] For example, in Embodiments 1 to 6, when using the magnetic attraction connection method, there are mutually engaged protrusions and depressions between the crimping die 2 and the quick-change transition block component 3. Through the combination of magnetic attraction and concavo-convex connection, the connection between the two is realized. During its use, through the extrusion between the two side crimping dies 2 and the two side quick-change transition block components 3, positioning is achieved through the concavo-convex structure, and further connection and fixation are realized through the magnetic attraction connection method. Among them, the concavo-convex insertion method is one of interference fit or transition fit.

[0102] For example, in Embodiments 1 to 6, when using bolt screw installation, by setting a jack in one of the crimping die 2 or the quick-change transition block component 3 and a threaded hole in the other, fixed installation is achieved through an internal hexagon bolt. In addition, by setting a mutually coupled concavo-convex structure between the crimping die 2 and the quick-change transition block component 3, further stability during use is achieved.

[0103] For example, in Embodiments 1 to 6, when using the movable insertion method, the insertion relationship is through at least one set of concavo-convex insertion structures, and the insertion structure is one of interference fit or transition fit.

[0104] Based on the above embodiments, the crimping die 2 realizes corresponding elastic-plastic deformations of the crimping tube, the crimping terminal and the suspension wire during the crimping process by designing different crimping grooves inside it, ensuring the connection strength and crimping quality between parts.

[0105] A method for crimping an integral suspension wire of a catenary system includes the following steps:

[0106] S1. First, complete the assembly of each part of the suspension wire;

[0107] S2. Start the hydraulic cylinder 1, and the pressure acts on both sides of the suspension wire through the quick-change transition block assembly 3 and the crimping die 2 to complete the first crimping;

[0108] S3. The heart-shaped loop / crimping tube spacing control mechanism 9 adjusts the spacing between the heart-shaped loop spindle block 5 and the crimping die 2;

[0109] S4. After the adjustment is completed, start the hydraulic cylinder 1, and complete the crimping of the suspension wire through the quick-change transition block assembly 3 and the crimping die 2;

[0110] S5. Complete the tension and length tests of the specified length of the suspension wire;

[0111] S6. Start the hydraulic cylinder 1 to complete the crimping of the suspension wire.

[0112] A method for quickly replacing the heart-shaped loop spindle includes the following steps:

[0113] S101. Reset each component to its mechanical in-situ position;

[0114] S102. Manually control the cylinder below the limit mechanism 4 to lift it, and remove the pin inserted into the pin hole 81 between the heart-shaped loop spindle block 5 and the main platform 8 with a tool;

[0115] S103. Pull out the heart-shaped loop spindle block 5 to be replaced, place the replaced heart-shaped loop spindle block 5 on the top of the main platform 8, and insert the pin into the pin hole 81;

[0116] S104. Reset the cylinder and observe whether the connection relationship between the limit mechanism 4 and the heart-shaped loop spindle block 5, and between the heart-shaped loop spindle block 5 and the main platform 8 is normal;

[0117] S105. If it is not normal, such as jamming occurs, it indicates that the position where the pin abuts against the bottom of the heart-shaped loop spindle block 5 is incorrect, and the heart-shaped loop spindle block 5 needs to be reinstalled;

[0118] S106. If it is normal, it indicates that the pin is correctly installed and the quick replacement of the heart-shaped loop spindle block 5 is completed.

[0119] A method for quickly replacing the crimping tube / crimping terminal die includes the following steps:

[0120] S201. Reset each component to its mechanical in - situ position;

[0121] S202. Remove the pressing block 10 above the crimping die 2 and the quick - change transition block assembly 3, and take out the crimping die 2 and the quick - change transition block assembly 3 as a whole along the dovetail groove direction;

[0122] S203. Insert the pre - connected crimping die 2 and the quick - change transition block assembly 3 along the dovetail groove direction into the driving block 11 and the limit positioning block 14;

[0123] S204. Control the reset movement of the hydraulic cylinder 1 and observe whether there is jamming;

[0124] S205. If there is jamming, it means the installation position is incorrect, and the crimping die 2 and the quick - change transition block assembly 3 need to be removed and reinstalled;

[0125] S206. If there is no jamming, it means the installation position is correct, there is no interference between the structures, and the installation of the crimping die 2 and the quick - change transition block assembly 3 is completed.

[0126] The above - mentioned is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. A contact network integral suspension string crimping quick-change device, characterized in that: include: Main Platform(8) and a heart-shaped ring / crimping tube spacing control mechanism (9) installed on the top of the main platform (8), a hydraulic cylinder (1) and a limit positioning block (14) being installed on the top of the heart-shaped ring / crimping tube spacing control mechanism (9), a quick-change transition block assembly (3) for relative motion clamping being inserted between the opposite ends of the hydraulic cylinder (1) and the limit positioning block (14), and a crimping die (2) being movably installed inside the quick-change transition block assembly (3); A heart-shaped ring-spindle block (5) is provided on one side of the crimping die (2), and a lifting guide mechanism (6) and a cylinder (12) are provided on the other side of the crimping die (2). The top of the lifting guide mechanism (6) moves in the vertical and horizontal directions, and the top block (121) fixed at the output end of the cylinder (12) moves in the horizontal direction. A transition wheel (7) is also provided on the top of the main platform (8) corresponding to the top side of the lifting guide mechanism (6). A transmission block (11) is fixed at the output end of the hydraulic cylinder (1), and the limit positioning block (14) is fixedly installed on the top of the main platform (8). The opposite ends of the transmission block (11) and the limit positioning block (14) are provided with corresponding card slots, and the divergent ends of the quick-change transition block assemblies (3) on both sides are coupled with the card slots. The crimping mold (2) movably installed inside the quick-change transition block assembly (3) includes a plurality of crimping tube crimping molds and a plurality of crimping terminal crimping molds. A first crimping tube quick-change transition block assembly (31), a second crimping tube quick-change transition block assembly (32) and a third crimping tube quick-change transition block assembly (33) are respectively arranged corresponding to the plurality of crimping tube crimping molds, and a first crimping terminal quick-change transition block assembly (34), a second crimping terminal quick-change transition block assembly (35) and a third crimping terminal quick-change transition assembly (36) are respectively arranged corresponding to the plurality of crimping terminal crimping molds.

2. The contact network integral suspension string crimping quick-change device according to claim 1 is characterized in that: The heart-shaped ring spindle block (5) is fixedly mounted on the top of the main platform (8), and a pin hole (81) is provided on one side of the bottom of the heart-shaped ring spindle block (5) on the main platform (8). The bottom end of the heart-shaped ring spindle block (5) is plugged into the top of the main platform (8), and a pin is inserted into the pin hole (81) to fix the heart-shaped ring spindle block (5) and the main platform (8). A limiting mechanism (4) for vertical lifting movement is also fixedly mounted on the top of the main platform (8), and the limiting mechanism (4) is movably abutted against the top of the heart-shaped ring spindle block (5).

3. The contact network integral suspension string crimping quick-change device according to claim 1 is characterized in that: The heart-shaped ring / crimping tube spacing control mechanism (9) comprises a servo motor (91) and a screw rod (92) drivingly connected to the servo motor (91); a guide rail (93) is fixed on the top of the main platform (8); a crimping platform (94) is slidably mounted on the top of the guide rail (93); the bottom of the crimping platform (94) is threadedly connected to the screw rod (92); and the servo motor (91) is fixedly mounted on the top of the main platform (8).

4. The contact network integral suspension string crimping quick-change device according to claim 1 is characterized in that: The quick-change transition block assemblies (3) on both sides are respectively fixedly mounted with pressure blocks (10) at the top of the coupling positions with the transmission block (11) and the limit positioning block (14), and the cylinder (12) is fixedly mounted on the side of the limit positioning block (14) by means of hexagon socket bolts.

5. The contact network integral suspension string crimping quick-change device according to claim 1 is characterized in that: A lifting action block (61) is fixedly mounted on one side of the lifting guide mechanism (6) adjacent to the lifting block (121), and the lifting action block (61) is driven to move in vertical and horizontal directions by the lifting guide mechanism (6).

6. The contact network integral suspension string crimping quick-change device according to claim 1, characterized in that: The crimping tube crimping mold comprises a first crimping tube crimping mold (21), a second crimping tube crimping mold (22) and a third crimping tube crimping mold (23); The first crimping tube quick-change transition block assembly (31) corresponding to the two first crimping tube crimping dies (21) comprises a first transition block assembly part (311) and a first transition block assembly part (312); The second crimping tube quick-change transition block assembly (32) corresponding to the two second crimping tube crimping dies (22) comprises a second quick-change transition block part (321) and a second quick-change transition block part (322), wherein the second quick-change transition block part (322) is provided with a protruding component, and the protruding component is plug-connected with one of the second crimping tube crimping dies (22); The third crimping tube quick-change transition block assembly (33) corresponding to the two third crimping tube crimping dies (23) comprises a third quick-change transition block part (331) and a third quick-change transition block part (332); the third crimping tube crimping dies (23) are plugged into the side of the third quick-change transition block part (331) or the third quick-change transition block part (332).

7. The contact network integral suspension string crimping quick-change device according to claim 1 is characterized in that: The crimping terminal crimping tool comprises a first crimping terminal crimping die (24), a second crimping terminal crimping die (25) and a third crimping terminal crimping die (26); The first crimping terminal quick-change transition block assembly (34) corresponding to the two first crimping terminal crimping dies (24) comprises a first terminal quick-change block part (341) and a first terminal quick-change block part (342); The second crimping terminal quick-change transition block assembly (35) corresponding to the two second crimping terminal crimping dies (25) comprises a second terminal quick-change block part (351) and a second terminal quick-change block part (352); The third crimping terminal quick-change transition assembly (36) corresponding to the two third crimping terminal crimping dies (26) has the same structure as the third crimping tube quick-change transition block assembly (33).

8. The contact network integral suspension string crimping quick-change device according to claim 1 is characterized in that: The connection method between the crimping die (2) and the quick-change transition block assembly (3) includes any one of active plug-in, bolt thread installation, and magnetic attraction connection.

9. The contact network integral suspension string crimping quick-change device according to claim 1, characterized in that: The diameter of the inscribed circle of the cross section of the crimping groove in the middle of the two opposite crimping tube crimping molds is not equal to the diameter of the inscribed circle of the cross section of the crimping groove in the middle of the two opposite crimping terminal crimping molds.

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