Traction equipment for static load test of rail vehicle bogie

Abstract

The present invention provides a traction device for a static load test of a rail vehicle bogie, the structure of which comprises: a fixed block, a bonding layer, a traction body, a pulling shaft, a bottom plate, and a moving organization, wherein the fixed block is welded to the surface layer of the bonding layer, and the bonding layer and the surface end of the traction body are an integrated structure; after further improvement of the moving organization, the present invention can drive the telescopic body to extend a protective plate through the movement of a roller on a test rail, so that the protective plate can isolate the splashing impact of stones, prevent deformation caused by continuous impact, and prevent stones from getting stuck in the roller and causing it to get stuck. At the same time, the roller can effectively improve its own origin positioning and rolling effect by using a rotating rod at the center, and can directly drive the telescopic body to move during the movement of the rotating rod, thereby improving the connection performance of the two, maintaining the characteristics of stable operation, and can further prevent the stone from getting stuck according to the integrated effect of the wheel body, thereby improving the stable movement effect of various components.

Description

Technical Field

[0001] The invention relates to the technical field of rail vehicles, and more specifically to a traction device for static load testing of a rail vehicle bogie. Background Art

[0002] The rail vehicle bogie is one of the important structures in the vehicle track. The rail vehicle bogie can increase the running speed of the train and increase the load and length of the train. The traction equipment used in the process can improve the experimental stability of the train on the track and prevent the derailment of the train during the track test.

[0003] In summary, the inventors have found that the existing traction equipment mainly has the following defects: when the traction equipment is conducting a connection test with a train on a test track, the test track contains a large number of pebbles (pebbles play a role in protecting the roadbed, removing water accumulation on the track, and buffering and shock absorbing), so that the moving organization at the bottom of the traction equipment will directly contact the pebbles during the running process on the track, and it is easy to drive the pebbles to bounce according to its own power, so that the pebbles will directly hit the moving organization during the bouncing process and will be stuck in the splicing gap of the moving organization according to the kinetic energy of the moving organization, eventually causing the moving organization to be stuck and unable to rotate due to the stuck pebbles. Summary of the invention

[0004] The technical solution adopted by the present invention to achieve the technical purpose is: a traction equipment for static load test of rail vehicle bogie, whose structure includes: a fixed block, a bonding layer, a traction body, a pulling shaft, a bottom plate, and a moving organization. The fixed block is welded to the surface layer of the bonding layer, the bonding layer and the surface end of the traction body are an integrated structure, the pulling shaft is embedded in the side end of the traction body, the bottom plate is arranged below the pulling shaft and connected to the lower end of the traction body, and the moving organization is fixed to the lower end of the bottom plate.

[0005] As a further improvement of the present invention, the moving organization is provided with a splicing rod, a solid disk, a telescopic body, a roller, and a protective plate. The splicing rod is embedded in the upper end center of the solid disk, the telescopic body and the solid disk have the same center, the roller is installed at the lower end center of the telescopic body and is clearance-fitted, the roller and the telescopic body are movably fitted, and the protective plate is embedded in the edge of the telescopic body and is telescopically movable; the splicing rod and the solid disk are perpendicular to each other, and the splicing rod and the solid disk are both made of stainless steel, and the roller is in a spherical shape, the protective plate is in an arc-shaped solid state, and the exposed external position contains a corresponding rubber body.

[0006] As a further improvement of the present invention, the roller is provided with a contact layer, a wheel body, an overlapping layer, an assembly, a mounting groove, and a rotating rod. The contact layer and the wheel body are an integrated structure. The overlapping layer is embedded in the middle part of the wheel body. The assembly is fixed to the edge surface of the overlapping layer. The mounting groove is arranged at the side end of the assembly and is laterally fixed to the center point of the overlapping layer. The rotating rod passes through the surface end of the mounting groove and is clearance-matched with the overlapping layer. The assembly is provided with two groups on the overlapping surface and forms a symmetrical shape. At the same time, the mounting groove is distributed in a transverse straight line, and the length of the rotating rod is greater than the overall length of the mounting groove.

[0007] As a further improvement of the present invention, the wheel body is provided with a connecting shaft, a limiting ring, an insertion hole, a support rod, and a clamping block. The connecting shaft and the limiting ring have the same center, the insertion hole passes through the center of the limiting ring, the support rod is positioned and connected to the inner edge of the insertion hole, and the clamping block is connected to the insertion hole through the support rod; the connecting shaft is circular in shape, and the insertion hole is hollow, and the insertion hole contains multiple groups of support rods and clamping blocks, and the support rods and the clamping blocks are distributed according to the orientation of the circular ring.

[0008] As a further improvement of the present invention, the clamping block is provided with a slot, a fixed layer, an interlayer, an active cavity, a central axis, a positioning group, and a lifting wheel. The slot is embedded in the upper center of the fixed layer and is an integrated structure. The interlayer and the lower end of the fixed layer are an integrated structure. The active cavity is communicated with the interlayer and is fixed to the inner side of the fixed layer. The central axis is fixedly connected to the active cavity. The positioning group is positioned and connected to the active cavity through the central axis. The lifting wheel is embedded in the bottom of the positioning group. The interlayer is a double-layer form, and the center of the double layer is hollow. At the same time, the active cavity contains an arc-shaped central axis, and a plurality of positioning groups are arranged on the central axis. The lower end of each positioning group includes a spherical lifting wheel.

[0009] As a further improvement of the present invention, the pull shaft reinforcement block, storage box, introduction groove, wire connector, and positioning device, the reinforcement block is welded to the left center part of the storage box, the introduction groove runs through the right center part of the storage box, the wire connector is embedded in the introduction groove and is clearance-matched with the inner side of the storage box, the positioning device runs through the upper end part of the storage box and is fixedly connected to the wire connector; the reinforcement block is a square polished shape, and the positioning device is a round solid shape.

[0010] As a further improvement of the present invention, the positioning device is provided with an insertion rod, a closing cover, a straight rod, a protrusion, and an assembly rod. The insertion rod is welded to both sides of the lower end of the closing cover, the straight rod is fixed to the center of the lower end of the closing cover, and is matched with the insertion rod at a distance. The rear side of the protrusion is in contact with the surface of the straight rod, and the assembly rod is arranged under the protrusion, and the assembly rod is embedded in the center of the lower end of the straight rod. A total of two insertion rods are provided on the closing cover, and a symmetrical shape is formed. The straight rod and the closing cover are perpendicular to each other, and the straight rod itself contains a plurality of elastic protrusions on its surface. The diameter of the assembly rod is smaller than the diameter of the straight rod.

[0011] As a further improvement of the present invention, the closing cover is provided with a cover body, a carrier layer, a magnetic block, a fixing groove, a center block, and a threaded layer; the cover body and the carrier layer are an integrated structure; the magnetic block falls into the surface of the carrier layer; the fixing groove is embedded in the center of the carrier layer; the center block and the fixing groove have the same center; the threaded layer and the inner side of the fixing groove are an integrated structure and are spaced apart from the center block; the carrier layer is in a circular finely polished shape, and contains two magnetic blocks at the surface end; a cylindrical center block is provided in the fixing groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. After further improvement on the mobile organization, the present invention can drive the telescopic body to extend the protective plate through the movement of the roller on the test rail, so that the protective plate can isolate the splashing impact of stones, prevent deformation caused by continuous impact, and prevent stones from getting stuck in the roller and causing it to get stuck. At the same time, the roller can effectively improve its own origin positioning and rolling effect by using the rotating rod in the center, and can directly drive the telescopic body to move during the movement of the rotating rod, thereby improving the connection performance of the two and maintaining the characteristics of stable operation. In addition, according to the integrated effect of the wheel body, the stone jamming phenomenon can be further prevented, thereby improving the stable movement effect of various components.

[0014] 2. After further improvement on the wheel body, the present invention can improve the overlapping assembly stability between the rollers through the connecting shaft, and at the same time, the insertion hole of the limit ring can provide a corresponding accommodating space for the rotating rod, and then with the support of the internal clamping block, the origin positioning of the rotating rod can be improved, and after the rotating rod penetrates the interlayer of the clamping block and enters the movable cavity, it can rotate with the lifting wheel to improve the rotation smoothness of the rotating rod, and at the same time, according to the combination of the interlayer and the limit ring, the connecting gap of the rotating rod can be filled, and the gap between the rotating rod and the wheel body can be eliminated, thereby preventing the stone powder after the stone is crushed from floating into the wheel body through the gap.

[0015] 3. After further improvement on the pull shaft, the present invention can improve the positioning of the storage box in the traction body through the reinforcement block, so that the newly added wire connection body inside can circulate and rotate with the rope used in the test process, ensuring that the rope can be used at a corresponding height, thereby improving the test stability of the train on the track, and the straight rod and the protrusion of the positioning device can directly penetrate the center of the wire connection body, so as to prevent the wire connection body from falling off due to the continuous circulation of the pull wire and the influence of the weight of the train.

[0016] 4. The present invention is further improved from the closed cover. The top of the straight rod can be inserted and threaded through the center block of the cover body and the threaded layer, so that it can be easy to disassemble and assemble. The center block can insert the center of the straight rod to ensure that the center of the straight rod and the center of the carrier layer remain in a consistent state. At the same time, the magnetic block can be adsorbed after connection to achieve the effect of horizontal splicing, and to prevent tilting and excessive gaps. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model relates to a structural schematic diagram of a traction device for a static load test of a rail vehicle bogie.

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of an improved mobile organization.

[0019] Figure 3 The present invention is a schematic diagram of the three-dimensional structure of an improved roller.

[0020] Figure 4 The invention relates to a structural schematic diagram of a cross-section of an improved wheel body side end.

[0021] Figure 5 This is a schematic diagram of the structure of the internal analysis of an improved clamp.

[0022] Figure 6 The present invention is a schematic diagram of the three-dimensional structure of an improved pull shaft.

[0023] Figure 7 The present invention is a schematic diagram of the three-dimensional structure of an improved positioning device.

[0024] Figure 8 The present invention is a schematic diagram of a three-dimensional structure of an improved closure cover.

[0025] In the figure: fixed block-1, laminating layer-2, traction body-3, pulling shaft-4, bottom plate-5, moving organization-6, splicing rod-61, solid disk-62, telescopic body-63, roller-64, protective plate-65, contact layer-641, wheel body-642, overlapping layer-643, assembly part-644, installation groove-645, rotating rod-646, connecting shaft-a1, limiting ring-a2, insertion hole-a3, support rod-a4, clamping block-a5, slot-a51, fixed Fixed layer-a52, interlayer-a53, movable cavity-a54, central axis-a55, positioning group-a56, lifting wheel-a57, reinforcement block-41, storage box-42, introduction groove-43, wire connection body-44, positioning device-45, insertion rod-451, closing cover-452, straight rod-453, protrusion-454, assembly rod-455, cover body-b1, loading layer-b2, magnetic suction block-b3, fixing groove-b4, central block-b5, threaded layer-b6. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings: Example

[0027] Figures 1 to 5 As shown:

[0028] The present invention provides a traction device for a static load test of a rail vehicle bogie.

[0029] Its structure includes a fixed block 1, a bonding layer 2, a traction body 3, a pulling shaft 4, a bottom plate 5, and a moving tissue 6. The fixed block 1 is welded to the surface layer of the bonding layer 2, the bonding layer 2 and the surface end of the traction body 3 are an integrated structure, the pulling shaft 4 is embedded in the side end of the traction body 3, the bottom plate 5 is arranged below the pulling shaft 4 and connected to the lower end of the traction body 3, and the moving tissue 6 is fixed to the lower end of the bottom plate 5.

[0030] The moving mechanism 6 is provided with a splicing rod 61, a solid disk 62, a telescopic body 63, a roller 64, and a protective plate 65. The splicing rod 61 is embedded in the upper end center of the solid disk 62, the telescopic body 63 and the solid disk 62 have the same center, the roller 64 is installed in the lower end center of the telescopic body 63 and is clearance-matched, the roller 64 and the telescopic body 63 are movably matched, and the protective plate 65 is embedded in the edge of the telescopic body 63 and is telescopic; the splicing rod 61 and the solid disk 62 are perpendicular to each other, and the splicing rod 61 and the solid disk 62 are both made of stainless steel, and the roller 64 is in a spherical shape, and the protective plate 65 is in an arc-shaped solid state, and the corresponding rubber body is contained in the exposed external position;

[0031] The splicing rod 61 can effectively limit the position of the roller 64 by being perpendicular to the solid disk 62, ensuring that the roller 64 is in operation at a specific height and midpoint. At the same time, the stainless steel material of the splicing rod 61 and the solid disk 62 can ensure that they maintain their original strength in an open air environment and prevent rust. At the same time, the roller 64 can improve its rolling performance in the track according to its spherical shape. The protective plate 65 can match the shape of the telescopic body 63 according to its own shape, so that it can limit its own extension length according to the control of the telescopic body 63, and the rubber body of its outer layer can rebound it during the contact with the stone.

[0032] The roller 64 is provided with a contact layer 641, a wheel body 642, an overlapping layer 643, an assembly 644, a mounting groove 645, and a rotating rod 646. The contact layer 641 and the wheel body 642 are an integrated structure. The overlapping layer 643 is embedded in the middle part of the wheel body 642. The assembly 644 is fixed to the edge surface of the overlapping layer 643. The mounting groove 645 is arranged at the side end of the assembly 644 and is laterally fixed to the center point of the overlapping layer 643. The rotating rod 646 runs through the surface end of the mounting groove 645 and is clearance-matched with the overlapping layer 643. Two groups of the assembly 644 are provided on the overlapping layer 643, and form a symmetrical shape. At the same time, the mounting groove 645 is distributed in a transverse straight line, and the length of the rotating rod 646 is greater than the overall length of the mounting groove 645.

[0033] The assembly parts 644 can quickly connect the overlapping layers 643 and other parts according to their own number. At the same time, the horizontal linear distribution of the installation groove 645 is conducive to the loading of the rotating rod 646, and the rotating rod 646 is firmly fixed in the installation groove 645. The rotating rod 646 can pass through the two ends of the wheel body 642 according to its own length to connect with the parts, thereby achieving the effect of mutual movement with the parts.

[0034] The wheel body 642 is provided with a connecting shaft a1, a limiting ring a2, an insertion hole a3, a support rod a4, and a clamping block a5. The connecting shaft a1 and the limiting ring a2 are of the same center, the insertion hole a3 passes through the center of the limiting ring a2, the support rod a4 is positioned and connected with the inner edge of the insertion hole a3, and the clamping block a5 is connected with the insertion hole a3 through the support rod a4; the connecting shaft a1 is circular, and the insertion hole a3 is hollow, and the insertion hole a3 contains multiple groups of support rods a4 and clamping blocks a5, and the support rods a4 and the clamping blocks a5 are distributed in the ring orientation;

[0035] The connecting shaft a1 can match the shape of the component according to its own circular shape, and can improve the connection performance between the components according to its own connection support, so that the hollow shape of the through hole a3 can be conducive to the direct penetration of the component, and the internal support rod a4 can limit the position of the clamping block a5, so that the clamping block a5 can fit together with the surface of the component, thereby improving the origin rotation effect of the component.

[0036] Among them, the clamping block a5 is provided with a slot a51, a fixed layer a52, an interlayer a53, an active cavity a54, a central axis a55, a positioning group a56, and a lifting wheel a57. The slot a51 is embedded in the upper center of the fixed layer a52 and is an integrated structure. The interlayer a53 and the lower end of the fixed layer a52 are an integrated structure. The active cavity a54 is communicated with the interlayer a53 and is fixed to the inner side of the fixed layer a52. The central axis a55 is fixedly connected to the active cavity a54. The positioning group a56 is positioned and connected to the active cavity a54 through the central axis a55. The lifting wheel a57 is embedded in the bottom of the positioning group a56. The interlayer a53 is a double-layer form, and the center of the double layer is hollow. At the same time, the active cavity a54 contains an arc-shaped central axis a55, and a plurality of positioning groups a56 are arranged on the central axis a55. The lower end of each positioning group a56 contains a spherical lifting wheel a57.

[0037] The interlayer a53, according to its double-layer shape, can facilitate the component to enter into the active cavity a54 from the middle hollow part, so that the component and the contact part can be fitted together on the basis of the double layer, thereby improving the rotational airtightness of the component, and the internal arc-shaped central axis a55 can fix the position of the positioning group a56 using the arc-shaped orientation, and at the same time, the lifting wheel a57 at the bottom of the positioning group a56 can rotate together with the rotation of the component, thereby improving the rotation process performance of the component.

[0038] Specific functions and operation procedures of this embodiment:

[0039] In the present invention,

[0040] First: the traction equipment can place the traction body 3 on a specific test track through the bottom plate 5 and the mobile organization 6. The traction body 3 can be directly spliced ​​with the connecting part of the test train according to the bonding layer 2 and the fixing block 1. At the same time, the pull shaft 4 is used to fix the midpoint of the train. Then, the traction effect of the train test is achieved through the moving effect of the mobile organization 6 on the test track, thereby completing the traction operation of the train test;

[0041] Second: the mobile organization 6 can fix the solid disk 62 and the telescopic body 63 to the lower end of the traction body 3 through the mutual coordination of the splicing rod 61 and the solid disk 62, and then use the roller 64 at the lower end of the center of the telescopic body 63 to directly contact the track to complete the displacement effect of the traction body 3, and then the roller 64 can drive the internal parts of the telescopic body 63 to move during the rolling process, so that the telescopic body 63 extends the protective plate 65 and wraps the two sides of the roller 64 for protection, so that the stone splashing generated during the movement process will be blocked by the protective plate 65, and according to the rebound effect of the protective plate 65, the splashed stones will be rebounded to ensure the stable rotation effect of the roller 64 on the track;

[0042] Third: The roller 64 can directly contact the test rail through the contact layer 641 of the wheel body 642. At the same time, the assembly 644 of the overlapping layer 643 inside the wheel body 642 can facilitate the mutual assembly of the upper and lower wheel bodies 642, so that they can achieve an integrated closed effect and enhance the rolling performance of the roller 64. In addition, the horizontal linear installation groove 645 in the center of the overlapping layer 643 can accommodate a rotating rod 646, so that the rotating rod 646 can be fixed to the center of the wheel body 642. Based on the length of the rotating rod 646, its two sides can directly pass through the installation groove 645 and connect with the inside of the telescopic body 63. In the rolling process of the wheel body 642, the rotating rod 646 can be driven to rotate, so that it can complete the control of the telescopic body 63. Under the support of the rotating rod 646, the control effect of the telescopic body 63 can be improved. At the same time, according to the effect of the wheel body 642 being assembled into one body through the assembly 644, the overall activity strength of the wheel body 642 can be enhanced.

[0043] Fourth: the wheel body 642 can improve its own connection performance according to the internal connection shaft a1, and then the limiting ring a2 with the same center can limit the diameter of the insertion hole a3, so that the insertion hole a3 can be directly penetrated by the rotating rod 646, thereby improving the penetration verticality of the rotating rod 646. At the same time, the multiple groups of supporting rods a4 inside the insertion hole a3 can fix the position of the clamping block a5, so that the clamping block a5 can be arranged in a circular orientation and then fit with the surface of the rotating rod 646 to prevent the gap between the two from being invaded by dust generated when the stones are crushed;

[0044] Fifth: the clamping block a5 can provide a corresponding connection area for the support rod a4 through the slot a51, so that the support rod a4 can be fixed to the midpoint of the fixed layer a52, so that the lower end interlayer a53 can effectively introduce the rotating rod 646 into the active cavity a54 through its own central hollow foundation in its double-layer state, and then the positioning group a56 and the lifting wheel a57 fixed by the central axis a55 inside the active cavity a54 can move with the rotating rod 646 and rotate together using the driving force of the rotating rod 646. For this reason, the origin rotation effect of the lifting wheel a57 can assist the rotation effect of the rotating rod 646, thereby further improving the rotation smoothness of the rotating rod 646. Example

[0045] Figures 6 to 8 As shown:

[0046] The present invention provides a traction device for a static load test of a rail vehicle bogie.

[0047] Its structure includes the reinforcing block 41 of the pull shaft 4, a storage box 42, an introduction groove 43, a wire connection body 44, and a positioning device 45. The reinforcing block 41 is welded to the left center of the storage box 42, the introduction groove 43 runs through the right center of the storage box 42, the wire connection body 44 is embedded in the introduction groove 43 and is clearance-matched with the inner side of the storage box 42, and the positioning device 45 runs through the upper end of the storage box 42 and is fixedly connected to the wire connection body 44; the reinforcing block 41 is a square polished shape, and the positioning device 45 is a round solid shape;

[0048] The reinforcing block 41 can match the shape of the component according to its square shape, and can drive the storage box 42 to be inserted in a specific area according to its own protruding effect, thereby improving the origin fixation of the storage box 42. Furthermore, the positioning device 45 can match the shape of the wire connector 44 according to its own circular shape, thereby improving the strength and origin fixation of the wire connector 44 and preventing the wire connector 44 from being detached due to the influence of the weight of the lead train.

[0049] The positioning device 45 is provided with an insert rod 451, a closing cover 452, a straight rod 453, a protrusion 454, and an assembly rod 455. The insert rod 451 is welded to both sides of the lower end of the closing cover 452. The straight rod 453 is fixed to the center of the lower end of the closing cover 452 and is spaced to match the insert rod 451. The rear side of the protrusion 454 is in contact with the surface of the straight rod 453. The assembly rod 455 is arranged below the protrusion 454 and is embedded in the center of the lower end of the straight rod 453. Two insert rods 451 are provided on the closing cover 452 and form a symmetrical shape. The straight rod 453 is perpendicular to the closing cover 452 and contains a plurality of elastic protrusions 454 on its surface. The diameter of the assembly rod 455 is smaller than that of the straight rod 453.

[0050] The number of the insertion rods 451 on the closing cover 452 can assist the closing cover 452 to be connected and matched with the component, and the perpendicularity between the straight rod 453 and the closing cover 452 can facilitate the penetration of the midpoint of the component. At the same time, the multiple elastic protrusions 454 on the surface of the straight rod 453 can strengthen the connection and fixation between itself and the component. The assembly rod 455 can assist the straight rod 453 to penetrate the component by using its own diameter, thereby preventing the assembly difficulty caused by the small difference in diameter between the straight rod 453 and the component.

[0051] The closure cover 452 is provided with a cover body b1, a carrier layer b2, a magnetic block b3, a fixing groove b4, a center block b5, and a threaded layer b6. The cover body b1 and the carrier layer b2 are an integrated structure. The magnetic block b3 falls into the surface of the carrier layer b2. The fixing groove b4 is embedded in the center of the carrier layer b2. The center block b5 and the fixing groove b4 are of the same center. The threaded layer b6 and the inner side of the fixing groove b4 are an integrated structure and are spaced in coordination with the center block b5. The carrier layer b2 is a circular finely polished shape, and contains two magnetic blocks b3 at the surface end. A cylindrical center block b5 is provided in the fixing groove b4.

[0052] The carrier layer b2 can ensure that all kinds of components are at the same height and horizontal line due to its own fine polishing effect, and prevent the occurrence of tilting. At the same time, the two magnetic blocks b3 can adsorb the surface of the components after connecting with the components to improve the fit between the two. The center block b5 of the fixed groove b4 can penetrate the center of the component and force the position of the component to be fixed at the center of the fixed groove b4.

[0053] Specific functions and operation procedures of this embodiment:

[0054] In the present invention,

[0055] First: the pulling shaft 4 can improve the positioning of the storage box 42 in the traction body 3 through the reinforcement block 41, so that the wire connection body 44 introduced into the groove 43 at the side end of the storage box 42 can be connected with the rope used in the test process and cyclically pulled, and the rope can be maintained at a specific horizontal height under the support of the wire connection body 44, so that the central traction effect of the test train can be directly seen, thereby improving the trial effect of the test train, and the positioning device 45 on the top of the storage box 42 can directly penetrate the center of the top of the storage box 42 to complete the positioning effect of the wire connection body 44;

[0056] Second: The positioning device 45 can be directly and quickly assembled with the top of the storage box 42 through the insertion rods 451 on both sides of the lower end of the closing cover 452, so that the straight rod 453 can penetrate the center of the circle of the wire connecting body 44 after passing through the center of the top of the storage box 42, and then fix it with the bottom of the storage box 42 by using the assembly rod 455 to complete the positioning effect of the wire connecting body 44, and finally, the gap between the straight rod 453 and the wire connecting body 44 can be eliminated by multiple groups of protrusions 454 on the surface of the straight rod 453, so as to improve the connection and fixing effect between the two, so as to improve the fixing effect of the wire connecting body 44, and prevent the wire connecting body 44 from falling off and center deviation caused by the pulling process due to the weight of the test train;

[0057] Third: the closing cover 452 can horizontally load the magnetic block b3 and the fixed groove b4 through the finely polished carrier layer b2 of the cover body b1, so that the magnetic block b3 can be adsorbed after the cover body b1 and the top of the storage box 42 are attached to each other, thereby improving the fitting performance of the two. Then, the center block b5 of the center fixed groove b4 can insert the top notch of the straight rod 453 to improve the vertical effect of the straight rod 453 and the cover body b1. Furthermore, during the insertion of the straight rod 453 by the center block b5, the threaded connection method can be used to rotate and lock it with the threaded layer b6, so that it can effectively strengthen the connectivity between the two, and the threaded connection method can indirectly improve the convenience of subsequent disassembly and maintenance of the two.

[0058] Utilizing the technical solution of the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above-mentioned technical effects, all fall within the protection scope of the present invention.

Claims

1. A traction device for static load test of a railway vehicle bogie, the structure of which comprises: A fixed block (1), a bonding layer (2), a traction body (3), a pulling shaft (4), a bottom plate (5), and a moving tissue (6), characterized in that: the fixed block (1) is welded to the surface layer of the bonding layer (2), the bonding layer (2) and the surface end of the traction body (3) are an integrated structure, the pulling shaft (4) is embedded in the side end of the traction body (3), the bottom plate (5) is arranged below the pulling shaft (4) and connected to the lower end of the traction body (3), and the moving tissue (6) is fixed to the lower end of the bottom plate (5); The moving mechanism (6) is provided with a splicing rod (61), a solid disk (62), a telescopic body (63), a roller (64), and a protective plate (65); the splicing rod (61) is embedded in the upper end center of the solid disk (62); the telescopic body (63) and the solid disk (62) have the same center; the roller (64) is installed at the lower end center of the telescopic body (63) and is clearance-matched; the roller (64) and the telescopic body (63) are movably matched; and the protective plate (65) is embedded in the edge of the telescopic body (63) and is telescopically movable; The roller (64) is provided with a contact layer (641), a wheel body (642), an overlapping layer (643), an assembly (644), a mounting groove (645), and a rotating rod (646); the contact layer (641) and the wheel body (642) are an integrated structure; the overlapping layer (643) is embedded in the middle part of the wheel body (642); the assembly (644) is fixed to the edge surface of the overlapping layer (643); the mounting groove (645) is arranged at the side end of the assembly (644) and is laterally fixed to the center point of the overlapping layer (643); and the rotating rod (646) passes through the surface end of the mounting groove (645) and is clearance-matched with the overlapping layer (643).

2. A traction device for static load test of a railway vehicle bogie according to claim 1, characterized in that: The wheel body (642) is provided with a connecting shaft (a1), a limiting ring (a2), an insertion hole (a3), a support rod (a4), and a clamping block (a5); the connecting shaft (a1) and the limiting ring (a2) are co-centered; the insertion hole (a3) ​​passes through the center of the limiting ring (a2); the support rod (a4) is positioned and connected to the inner edge of the insertion hole (a3); and the clamping block (a5) is connected to the insertion hole (a3) ​​via the support rod (a4).

3. A traction device for static load test of a railway vehicle bogie according to claim 2, characterized in that: The clamping block (a5) is provided with a slot (a51), a fixed layer (a52), an interlayer (a53), an active cavity (a54), a central axis (a55), a positioning group (a56), and a lifting wheel (a57); the slot (a51) is embedded in the center of the upper end of the fixed layer (a52) and is an integrated structure; the interlayer (a53) and the lower end of the fixed layer (a52) are an integrated structure; the active cavity (a54) is communicated with the interlayer (a53) and is fixed to the inner side of the fixed layer (a52); the central axis (a55) is fixedly connected to the active cavity (a54); the positioning group (a56) is positionedly connected to the active cavity (a54) via the central axis (a55); and the lifting wheel (a57) is embedded in the bottom of the positioning group (a56).

4. A traction device for static load test of a railway vehicle bogie according to claim 1, characterized in that: The pull shaft (4) comprises a reinforcement block (41), a storage box (42), an introduction groove (43), a wire connection body (44), and a positioning device (45); the reinforcement block (41) is welded to the left center portion of the storage box (42); the introduction groove (43) passes through the right center portion of the storage box (42); the wire connection body (44) is embedded in the introduction groove (43) and is clearance-matched with the inner side of the storage box (42); the positioning device (45) passes through the upper end portion of the storage box (42) and is fixedly connected to the wire connection body (44).

5. A traction device for static load test of a railway vehicle bogie according to claim 4, characterized in that: The positioning device (45) is provided with an insertion rod (451), a closing cover (452), a straight rod (453), a protrusion (454), and an assembly rod (455); the insertion rod (451) is welded to both sides of the lower end of the closing cover (452); the straight rod (453) is fixed to the center of the lower end of the closing cover (452) and is spaced to match the insertion rod (451); the rear side of the protrusion (454) is in contact with the surface of the straight rod (453); the assembly rod (455) is arranged below the protrusion (454) and is embedded in the center of the lower end of the straight rod (453).

6. A traction device for static load test of a railway vehicle bogie according to claim 5, characterized in that: The closure cover (452) is provided with a cover body (b1), a carrier layer (b2), a magnetic block (b3), a fixing groove (b4), a center block (b5), and a threaded layer (b6); the cover body (b1) and the carrier layer (b2) are an integrated structure; the magnetic block (b3) falls into the surface of the carrier layer (b2); the fixing groove (b4) is embedded in the center of the carrier layer (b2); the center block (b5) and the fixing groove (b4) are co-centered; the threaded layer (b6) and the inner side of the fixing groove (b4) are an integrated structure and are spaced in coordination with the center block (b5).

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