Wheel set turning and repairing clamping device and system

Abstract

The embodiment of the application provides a wheel set turning and repairing clamping device and system, wherein the wheel set turning and repairing clamping device comprises a bed body connecting seat used for being connected with a non-falling wheel turning bed, a connecting base is installed on the bed body connecting seat, a cylindrical through hole is horizontally arranged on the top of the connecting base, a turnover device capable of rotating relative to the circumference of the through hole is installed in the through hole, the output end of the turnover device is exposed to one side of the through hole, a downward pulling device is connected to the output end of the turnover device, the downward pulling device is perpendicular to the turnover device, the downward pulling device is lifted by rotating with the turnover device, a pressing head is arranged on the top of the downward pulling device and used for being clamped with an axle box. By adopting the automatic rotating and adjustable height form, the turning and repairing of the built-in axle box wheel set are automatically completed, the compatibility of the equipment is ensured, the equipment can be randomly switched between different types of wheel sets, the repeated investment of the equipment is avoided, the production change efficiency is improved, and the application is suitable for the technical field of subway train maintenance equipment.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of subway train maintenance equipment, in particular to a wheel set turning and repairing pressing device and system. BACKGROUND

[0002] In the running process of the rail vehicle, due to the influence of many factors, the wheel set will produce tread damage such as scuffing and peeling, and the phenomenon of single wheel out-of-round. In addition, due to the limitation of machining accuracy and the influence of running process eccentric wear, the rolling circle diameters of the four wheels of the same bogie are often different, that is, the wheel diameter difference is generated. At this time, the wheel set needs to be turned and repaired, otherwise it will affect the comfort, stability and safety of riding, and even cause serious accidents.

[0003] At present, with the increasing requirements of light weight, energy saving and consumption reduction of rail vehicles, the built-in axle box bogie has become the development direction of the industry, but the wheel set turning and repairing equipment owned by each railway bureau, vehicle depot and subway company is designed for external axle box, and the built-in axle box wheel set has no original pressing position due to the inward movement of the axle box, so it cannot use the existing device to complete the wheel set turning and repairing, which has a great impact on the use and maintenance of the built-in axle box bogie.

[0004] The existing wheel set turning and repairing pressing device adopts a manual bolt connection mode, and a threaded hole for bolt positioning connection is reserved at the lower part of the axle box. Before the built-in axle box wheel set turning and repairing equipment is used, the operator manually connects and positions the axle box with the equipment at the lower part of the axle box by using bolts. This kind of clamping method is low in efficiency, the space for tightening the bolts is small, the operator's labor intensity is large, safety accidents are easy to occur, and it is not convenient for batch production operation. SUMMARY

[0005] In order to solve one of the above technical defects, the present application provides a wheel set turning and repairing pressing device, which comprises a bed body connecting seat, a connecting base is installed on the bed body connecting seat, a through hole is horizontally provided at the top of the connecting base, a turnover device which can rotate relative to the circumference of the through hole is installed in the through hole, the output end of the turnover device is exposed on one side of the through hole, a downward pulling device is connected to the output end of the turnover device, the downward pulling device is perpendicular to the turnover device, and a pressing head is arranged at the top of the downward pulling device.

[0006] Further, a vertical plate is arranged on the other side of the connecting base relative to the through hole, the turnover device comprises a hydraulic cylinder, the hydraulic cylinder comprises a cylinder body, one end of the cylinder body is rotationally connected with the vertical plate, the other end of the cylinder body extends into the through hole and is connected with a hydraulic rod, the hydraulic rod is telescopically arranged in the cylinder body and moves linearly along the axial direction of the through hole, the output end of the turnover device is the cylinder body, the middle part of the cylinder body is connected with the downward pulling device, the output end of the hydraulic rod is connected with a rotating shaft, the rotating shaft can rotate relative to the circumference of the through hole, and the rotating shaft can convert the linear motion of the hydraulic rod into rotary motion.

[0007] Further, the rotating shaft surface is provided with a spiral groove, a guide pin perpendicular to the through hole is installed on the connecting base corresponding to the rotating shaft, the end of the guide pin is provided with a protrusion, the protrusion extends into the through hole and is in sliding connection with the spiral groove.

[0008] Further, the down-drawing device comprises a down-drawing base, the down-drawing base is arranged between the through hole and the vertical plate, a connecting body is connected above the down-drawing base through a locking screw, the cylinder passes through the bottom of the down-drawing base and is rotationally connected with the vertical plate, a mounting hole perpendicular to the axial direction of the cylinder is arranged in the middle of the cylinder, the locking screw passes through the mounting hole and the down-drawing base in sequence and is threadedly connected with the connecting body, and the pressing head is arranged on the top of the connecting body.

[0009] Further, an adjusting rod is fixedly installed on the down-drawing base, the upper part of the adjusting rod is embedded in the connecting body and is in sliding connection with the connecting body, a plurality of positioning holes are uniformly arranged on the upper part of the adjusting rod, and a dividing plunger is installed on one side of the connecting body, the dividing plunger can be inserted into a certain positioning hole and then be tightened and locked.

[0010] Further, the locking screw is provided with a first threaded section and a second threaded section at intervals, the first threaded section is threadedly connected with the connecting body, and a nut is threadedly installed on the second threaded section, the nut is locked and abuts against the down-drawing base.

[0011] Further, a spring is installed on the hydraulic cylinder, one end of the spring is connected with the cylinder, and the other end of the spring is in sliding connection with the hydraulic rod.

[0012] Further, a T-shaped groove is arranged on the bed body connecting base, a rectangular block is embedded at the bottom of the T-shaped groove, one side of the connecting base corresponding to the bed body connecting base is provided with a protrusion, the protrusion is embedded in the T-shaped groove, and the connecting base is threadedly connected with the rectangular block through a plurality of screws.

[0013] Further, the lower surface of the pressing head is concave upward and is an arc surface, and the lower surface is used for contacting the lower turning interface of the wheel set axle box.

[0014] Another aspect of the embodiment of the application provides a wheel set turning and repairing pressing system, which comprises a non-falling wheel turning bed, a swing frame arranged on the non-falling wheel turning bed, and any one of the wheel set turning and repairing pressing devices, the bed body connecting base is arranged on the non-falling wheel turning bed, the built-in axle box wheel set is arranged above the bed body connecting base, the built-in axle box wheel set comprises a wheel set and an axle box, the wheel set is supported and lifted through the swing frames arranged on both sides of the wheel set, the down-drawing device is in a horizontal state in a non-working period, the down-drawing device can be turned to a vertical state by 90 degrees in the axial rotation in a working period, and the pressing head is clamped with the lower turning interface of the axle box when the down-drawing device is rotated to the vertical state.

[0015] The wheel set turning and repairing pressing device and system provided in the embodiment of the application can automatically position and clamp the wheel set with the built-in axle box, so as to realize the turning and repairing of the wheel set with the built-in axle box; through the mutual cooperation between the turnover device and the pressing device, the manual bolt clamping connection and positioning of the axle box is not needed, the labor input is reduced, and the operation is safer and more convenient; through the turnover device, the pressing device can be driven to rotate to the horizontal state in the non-working state, the turning and repairing of the bogie with the built-in axle box and the bogie with the external axle box is simultaneously satisfied without manual adjustment, and the compatibility of the turning and repairing process of the bogie with the built-in axle box and the bogie with the external axle box on the wheel turning bed is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and serve to explain the principles of the application, and do not limit the application. In the drawings:

[0017] Figure 1 A structural schematic view of the wheel set turning and repairing pressing device provided in the embodiment of the application is shown in the figure;

[0018] Figure 2 A structural schematic view of the connecting base provided in the embodiment of the application is shown in the figure;

[0019] Figure 3 A structural schematic view of the turnover device provided in the embodiment of the application is shown in the figure;

[0020] Figure 4 A structural schematic view of the pulling-down device provided in the embodiment of the application is shown in the figure;

[0021] Figure 5 A structural schematic view of the adjusting rod and the indexing plunger provided in the embodiment of the application is shown in the figure;

[0022] Figure 6 A structural schematic view of the wheel set turning and repairing pressing system of the wheel set with the built-in axle box without the wheel falling provided in the embodiment of the application is shown in the figure;

[0023] Reference signs:

[0024] 10-bed body connecting seat; 101-rectangular block;

[0025] 20-connecting base; 201-through hole; 202-vertical plate;

[0026] 30-turnover device; 301-cylinder body; 302-hydraulic rod; 303-rotation shaft; 304-spiral groove; 305-guide pin; 306-spring;

[0027] 40 - pull-down device; 401 - pressure head; 402 - pull-down base; 403 - locking screw; 404 - connecting body; 405 - adjusting rod; 406 - positioning hole; 407 - indexing plunger; 408 - locking nut; 409 - through hole;

[0028] 50 - screw;

[0029] 60 - built-in axle box wheelset; 601 - wheelset; 602 - axle box;

[0030] 70 - swing frame. DETAILED DESCRIPTION

[0031] In order to make the technical solutions and advantages in the embodiments of the present application more clear and apparent, the following will combine the accompanying drawings to further describe the embodiments of the present application. Figures 1-6 Further detailed description will be made on the exemplary embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0032] In the process of implementing the present application, the inventors found that, with the increasing requirements of light weight, energy saving and consumption reduction of rail vehicles, the built-in axle box bogie has become the development direction of the industry. However, the wheelset non-falling wheel grinding and repairing equipment owned by each railway bureau, vehicle depot and subway company is designed for external axle box. The built-in axle box wheelset cannot be connected and positioned by the original clamping position due to the inward movement of the axle box, so it cannot be repaired by the existing device, which has a great impact on the use and maintenance of the built-in axle box bogie. The existing wheelset grinding and clamping device adopts a manual bolt connection mode. The lower part of the axle box is reserved with a threaded hole for bolt positioning connection. Before the equipment performs grinding and repairing on the built-in axle box wheelset, the axle box needs to be connected and positioned with the equipment manually by bolts. This clamping mode is low in efficiency, small in bolt tightening space, high in labor intensity of the operator, prone to safety accidents, and inconvenient for mass production.

[0033] The grinding and repairing of the wheelset of the rail vehicle generally needs to go through the following steps: first, the wheelset to be repaired needs to be clamped and fixed; second, the diameter, the thickness and the height of the flange of the wheelset are measured to determine the size to be repaired; third, the tread is roughly processed by the non-falling wheel grinder; fourth, the tread of the wheelset is finely processed to repair the wheelset to meet the use requirements; and finally, the measurement is performed again to determine whether it meets the grinding and repairing standard. The embodiments of the present application mainly aim at the first step, especially the fixing of the wheelset with built-in axle box.

[0034] In view of the above problems, a wheelset grinding and clamping device (hereinafter referred to as clamping device) is provided in the embodiments of the present application, as shown in Figure 1 , Figure 2、 Figure 4 As shown in the drawings, the device comprises a bed body connecting seat 10 for connecting with a wheel turning and repairing machine, a connecting base 20 is installed on the bed body connecting seat 10, a cylindrical through hole 201 is horizontally formed on the top of the connecting base 20, a turnover device 30 is installed in the through hole 201 and can rotate relative to the circumference of the through hole 201, the output end of the turnover device 30 is exposed on one side of the through hole 201, a downward pulling device 40 is connected with the output end of the turnover device 30, the downward pulling device 40 is perpendicular to the turnover device 30, the downward pulling device 40 is lifted up by the rotation of the turnover device 30, and a pressing head 401 is arranged on the top of the downward pulling device 40 for clamping an axle box.

[0035] In the specific implementation, the clamping device is installed on the wheel turning and repairing machine through the bed body connecting seat 10, the turnover device 30 is started, the turnover device 30 rotates in the through hole 201, the output end of the turnover device 30 exposed on one side of the through hole 201 drives the downward pulling device 40 connected therewith to rotate, the downward pulling device 40 is lifted up from the horizontal state to the vertical state, so as to drive the pressing head 401 on the top of the downward pulling device 40 to enter the clamping position of the axle box, thereby realizing the automatic positioning and clamping of the wheel set with the built-in axle box.

[0036] The wheel set turning and repairing clamping device provided by the embodiment adopts the cooperation of the turnover device 30 and the downward pulling device 40 to realize the automatic positioning and clamping of the wheel set with the built-in axle box, without the need of manually connecting and positioning the axle box and the equipment by bolts at the lower part of the axle box, so that the clamping is safer and more efficient; the turnover device 30 can switch the downward pulling device 40 between the horizontal non-working state and the vertical working state, thereby avoiding the interference of the clamping device to other wheel sets with external axle boxes during the turning and repairing process, and realizing the compatibility of the turning and repairing process of the bogie with the built-in axle box and the bogie with the external axle box.

[0037] As a preferred solution, as shown in the drawings, Figure 2 As shown in the drawings, the connecting base 20 is provided with a vertical plate 202 at the other side relative to the through hole 201, and a space for accommodating the downward pulling device 40 is formed between the vertical plate 202 and the connecting base 20. Figure 3As shown, the overturning device 30 includes a hydraulic cylinder and a hydraulic rod 302, the output end of the overturning device 30 is a cylinder body 301, the axis of the cylinder body 301 extends in the horizontal direction, one end of the cylinder body 301 is closed, and the other end is open. The closed end of the cylinder body 301 serves as the bottom end of the cylinder body 301 and is rotationally connected to the vertical plate 202, the middle of the cylinder body 301 is connected to the downward pulling device 40, and the open end of the cylinder body 301 extends into the through hole 201. One end of the hydraulic rod 302 is inserted into the cylinder body 301, and the hydraulic rod 302 can produce linear extension and retraction relative to the cylinder body 301 along the axis under the action of hydraulic pressure. The end of the hydraulic rod 302 exposed from the cylinder body 301 is connected to a rotating shaft 303 as the output end of the hydraulic rod 302, and the rotating shaft 303 can rotate relative to the circumference of the through hole 201, and the rotating shaft 303 can convert the linear motion from the hydraulic rod 302 into rotary motion.

[0038] As a preferred embodiment of the rotating shaft, a spiral groove 304 can be formed on the surface of the rotating shaft 303, and the center of rotation of the spiral groove 304 is collinear with the axis of the cylinder body 301. The connecting base 20 is provided with a pin hole perpendicular to the through hole 201, and the pin hole is in communication with the through hole 201. A guide pin 305 is inserted into the pin hole, and the end of the guide pin 305 is provided with a protrusion extending towards the direction of the rotating shaft. The guide pin 305 passes through the connecting base 20 through the pin hole, the protrusion extends into the through hole 201 and is inserted into the spiral groove 304, and the protrusion can slide along the spiral groove 304.

[0039] In specific implementation, when it is necessary to rotate the downward pulling device 40, the hydraulic cylinder is started, the hydraulic rod 302 is pushed to produce linear motion in the through hole 201, the hydraulic rod 302 pushes the rotating shaft 303 to produce linear motion in the through hole 201. Since the spiral groove 304 is formed on the surface of the rotating shaft 303, the guide pin 305 is always at the same position, the protrusion at the end of the guide pin 305 cooperates with the spiral groove 304, and the rotating shaft 303 is forced to produce linear motion in the through hole 201 while rotating along the circumference of the through hole 201. The rotating shaft 303 transmits the rotary motion to the hydraulic rod 302 and the cylinder body 301 connected thereto, the linear direction reaction force generated by the forward movement of the rotating shaft 303 is absorbed by the vertical plate 202, so that the cylinder body 301 can only rotate in the recess, and finally the cylinder body 301 drives the downward pulling device 40 to rotate, thereby realizing the rotary positioning of the downward pulling device 40.

[0040] As another embodiment of the rotating shaft, a spiral groove can be provided inside the through hole 201 corresponding to the rotating shaft 303, and a protrusion is provided on the rotating shaft 303, and the protrusion is in sliding connection with the spiral groove.

[0041] It should be noted that the two embodiments of the rotating shaft mentioned in the embodiments of the present application are only listed, and the rotating shaft 303 can convert the linear motion from the hydraulic rod 302 into rotary motion.

[0042] The turnover device 30 provided in the embodiment can drive the downward pulling device 40 to rotate and position to the clamping position of the axle box, and quickly complete automatic clamping by means of the force generated by rotation, without manually clamping and positioning the axle box by bolts, so as to reduce labor input and greatly improve the efficiency of wheel set clamping and pressing, and further improve the working efficiency of wheel set turning and repairing. The turnover device 30 can also realize switching between the working state and the non-working state of the present clamping and pressing device, so that the present device can meet the turning and repairing of the built-in axle box bogie and the external axle box bogie without manual adjustment, and realize the compatibility of the built-in axle box bogie and the external axle box bogie in the turning and repairing process without removing the wheel from the turning bed.

[0043] Further, the arrangement of the spiral groove 304 is related to the stroke of the rotating shaft 303, so as to at least enable the downward pulling device 40 to rotate 90 degrees from the horizontal position to the vertical position.

[0044] On the one hand, the downward pulling device 40 rotates to the horizontal position in the initial state and after the turning and repairing is completed, so as to avoid the interference of the device on the turning and repairing of other external axle box wheel sets, and enable the present clamping and pressing device to have good compatibility. On the other hand, the downward pulling device 40 rotates to the vertical state when working, so as to ensure that the force borne by the downward pulling device 40 and the vertical state of the downward pulling device 40 at the moment are on the same vertical line when the downward pulling device 40 is used to lift and tighten the wheel set after clamping is completed, so as to uniformly bear the force, and to avoid the deformation of the downward pulling device 40 to a certain extent when the force is borne, thereby reducing the replacement of parts and prolonging the service life of the equipment.

[0045] As a preferred scheme, as shown in Figure 4 , Figure 5 The downward pulling device 40 comprises a downward pulling base 402, which is arranged between the through hole 201 and the vertical plate 202. A connecting body 404 is connected to the top of the downward pulling base 402 by a locking screw 403. A through hole 409 is formed in the bottom of the downward pulling base 402. The cylinder body 301 is connected to the vertical plate 202 in a rotating manner after passing through the through hole 409. An installation hole perpendicular to the axial direction of the cylinder body 301 is formed in the middle of the cylinder body 301. The locking screw 403 is threadedly connected to the connecting body 404 after passing through the installation hole and the downward pulling base 402 in sequence. The pressing head 401 is arranged at the top of the connecting body 404.

[0046] In specific implementation, the cylinder body 301 is connected to the vertical plate 202 by passing through the through hole 409. Then, the locking screw 403 is threadedly connected to the connecting body 404 after passing through the installation hole and the downward pulling base 402 in sequence. The locking screw 403 connects the downward pulling device 40 and the turnover device 30, and realizes the synchronous rotation of the downward pulling device 40 and the turnover device 30. The space between the vertical plate 202 and the connecting base 20 can accommodate the downward pulling device 40, which is used to provide the rotation space of the downward pulling device 40, and to limit the horizontal displacement of the downward pulling device 40. As a preferred scheme, as shown inFigure 4 As shown, the adjusting rod 405 is fixedly installed on the pull-down base 402, the upper part of the adjusting rod 405 is embedded in the connecting body 404 and is in sliding connection with the connecting body 404, specifically, a hole is formed in the connecting body 404 for inserting the adjusting rod 405, and the adjusting rod 405 is inserted into the hole and moves in the hole. The upper part of the adjusting rod 405 is uniformly provided with a plurality of positioning holes 406, and the plurality of positioning holes 406 are arranged in sequence along the length direction of the adjusting rod 405. Correspondingly, a dividing plunger 407 is installed on one side of the connecting body 404, and the dividing plunger 407 can be inserted into a certain positioning hole 406 and then be tightened and locked.

[0047] In specific implementation, the wheel set diameter information is acquired in advance, the height of the entire pull-down device 40 is changed by adjusting the dividing plunger 407 to be inserted into different positioning holes 406 according to the wheel set size, so as to adjust the height of the pressure head 401, so as to meet the automatic clamping requirement of the entire train, and the plurality of positioning holes 406 can ensure that the wheels of various diameters are accurately clamped; on the other hand, the connection of the pull-down base 402 and the connecting body 404 by the locking screw 403 is not firm enough, and the vibration generated in the turning process can easily cause the relative rotation and deviation of the two, the upper part of the adjusting rod 405 is embedded in the connecting body 404, which can limit the relative rotation between the connecting body 404 and the pull-down device 402, increase the overall strength of the entire pull-down device 40, and make the pull-down device 40 more reliable in work.

[0048] Furthermore, the plurality of positioning holes 406 can be arranged at intervals of 10 cm and can be divided into four gears, and the total adjustment height is 40 cm, which is used to adapt to the wear change of the wheel set diameter size.

[0049] As a preferred scheme, the locking screw 403 is provided with a first threaded section and a second threaded section at intervals, the first threaded section is in threaded connection with the connecting body 404, and the second threaded section is provided with a nut 408 in threaded connection, and the nut 408 abuts against the pull-down base 402 after being locked in threaded cooperation with the second threaded end.

[0050] In specific implementation, the cylinder body 301 is first inserted through the pull-down base 402, the top of the adjusting rod 405 is in sliding connection with the connecting body 404, then the locking screw 403 is inserted through the mounting hole in the middle of the cylinder body 301 and the pull-down base 402 in sequence, the first threaded section is in threaded connection with the connecting body 404, at this time, the dividing plunger 407 has not been inserted into the positioning hole 406 and tightened, and the entire connecting body 404 can vertically slide relative to the pull-down base 402, according to the clamping position of the axle box, the dividing plunger 407 is adjusted to be inserted into the positioning hole 406 and tightened, then the nut 408 provided on the second threaded section is tightened, so that the nut 408 tightly abuts against the pull-down base 402 to be fixed, thereby further preventing the relative rotation between the pull-down base 402 and the connecting body 404 generated in the turning process, and achieving the effect of preventing loosening.

[0051] As a preferred solution, as shown in Figure 3 The spring 306 is sleeved on the hydraulic rod 302, one end of the spring 306 is connected with the open end of the cylinder body 301, and the other end of the spring 306 is fixedly connected with the hydraulic rod 302.

[0052] In specific implementation, when the hydraulic rod 302 is elongated under the hydraulic action, the spring 306 is also stretched. When the hydraulic rod 302 is retracted, the rebound force of the spring 306 can promote the retraction of the hydraulic rod 302.

[0053] As a preferred solution, as shown in Figure 1 The T-shaped groove is inlaid with a rectangular block 101, the rectangular block 101 is limited in the T-shaped groove and cannot be taken out from the opening of the T-shaped groove. In combination with Figure 2 The side of the connecting base 20 connected with the bed body connecting seat 10 is provided with a protrusion, the protrusion is embedded in the T-shaped groove and abuts against the rectangular block 101. The connecting base 20 is threadedly connected with the rectangular block 101 through a plurality of screws 50.

[0054] As the base of the entire carding device, the connecting base 20 can slide in the T-shaped groove of the bed body connecting seat 10 through the rectangular block 101 connected therewith, so as to adjust the position of the entire carding device.

[0055] Another aspect of the embodiment of the application provides a built-in axle box wheelset non-dropping wheel lapping and repairing carding system, which comprises any one of the wheelset lapping and repairing carding devices described above, as shown in Figure 6 The bed body connecting seat 10 is arranged on the non-dropping wheel lapper, the built-in axle box wheelset 60 is arranged above the bed body connecting seat 10, the built-in axle box wheelset 60 comprises a wheelset 601 and an axle box 602, the wheelset 601 is supported and lifted through the swing frames 70 arranged on both sides of the wheelset 601, the lowering device 40 is in a horizontal state in a non-working period, the lowering device 40 can be turned by 90 degrees to a vertical state through the turning device 30 in a working period, and the pressure head 401 is clamped with a lower lapping and repairing interface of the axle box 602 when the lowering device 40 is rotated to the vertical state.

[0056] In specific implementation, after the built-in axle box wheelset 60 to be lapped and repaired enters a lapping and repairing station of the non-dropping wheel lapper, the swing frames 70 on both sides of the equipment are lifted to support the wheelsets 601 on both sides, the swing frames 70 are lowered by a certain height after being stabilized, the lowering device 40 is rotated from horizontal to vertical, the pressure head 401 is deeply inserted into the lower lapping and repairing interface of the built-in axle box 602, the swing frames 70 lift the wheelsets 601 slowly, the lowering device 40 is tightened, and finally the wheelsets 601 are positioned in tension; after the wheelsets 601 are lapped and repaired, the lowering device 40 is rotated to be horizontal, and the normal lapping and repairing of other forms of wheelsets is not affected.

[0057] Further, as shown inFigure 4 As shown in FIG. 6, the clamping part of the press head 401 and the lower part of the shaft box 602 is designed as a concave arc, which matches the convex arc of the lower part of the shaft box 602, so as to effectively ensure that the shaft box 602 only bears the downward load and avoid the shaft box 602 from bearing the eccentric force due to the deformation of the downward pulling device 40. Figure 4 As shown in FIG. 6, the clamping part of the press head 401 and the lower part of the shaft box 602 is designed as a concave arc, which matches the convex arc of the lower part of the shaft box 602, so as to effectively ensure that the shaft box 602 only bears the downward load and avoid the shaft box 602 from bearing the eccentric force due to the deformation of the downward pulling device 40.

[0058] The wheel set grinding and clamping system with the built-in shaft box provided by the embodiment can realize the quick and automatic clamping and positioning of the wheel set with the built-in shaft box, reduce the labor intensity of the operator, improve the working efficiency of the equipment, and simultaneously satisfy the grinding requirements of the wheel set with the built-in shaft box and the wheel set with the external shaft box due to the good compatibility of the device.

[0059] Further, as shown in FIG. 6, the clamping part of the press head 401 and the lower part of the shaft box 602 is designed as a concave arc, which matches the convex arc of the lower part of the shaft box 602, so as to effectively ensure that the shaft box 602 only bears the downward load and avoid the shaft box 602 from bearing the eccentric force due to the deformation of the downward pulling device 40. Figure 4 The wheel set grinding and clamping device and system provided by the present application can reasonably utilize the interface of the existing equipment, skillfully avoid the operation space of other devices, automatically complete the grinding of the wheel set with the built-in shaft box by adopting the automatic rotation and adjustable height forms, ensure the compatibility of the equipment, randomly switch between different types of wheel sets, avoid the repeated investment of the equipment, and improve the change production efficiency. By adopting the scheme in the present application, the investment of the equipment procurement cost can be greatly reduced, the wheel set grinding efficiency can be improved, the labor intensity of the workers can be reduced, the operation cost can be greatly saved, a technical foundation is established for the popularization and application of the built-in shaft box bogie, and the present application has strong practicability.

[0060] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms “center”, “longitudinal”, “transverse”, “length”, “width”, “thickness”, “upper”, “lower”, “front”, “rear”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0061]

[0062] ​In addition, the terms "first", "second", etc. are used herein only to describe different instances, and do not imply or connote relative importance or a number of indicated technical features. Thus, features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality" is at least two, for example, two, three, etc., unless otherwise explicitly and specifically limited.

[0063] In the present application, unless otherwise explicitly and specifically defined, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection or can communicate with each other; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0064] Although the preferred embodiments of the present application have been described, those skilled in the art can make further changes and modifications to these embodiments once they know the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0065] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalent technologies, the present application also intends to include these modifications and variations.

Claims

1. A wheel set turning and pressing device, characterized in that, The utility model provides a bed body connecting seat (10) is installed on the connecting base (20), the connecting base (20) top transversely sets up the through -hole (201), the through -hole (201) is installed the turnover device (30) that can rotate relative to the circumference of through -hole (201), the output of turnover device (30) exposes one side of through -hole (201), the output of turnover device (30) is connected with the pull -down device (40), and pull -down device (40) is perpendicular to each other with turnover device (30), and the top of pull -down device (40) is equipped with the pressure head (401). The other side of connecting base (20) is provided with a vertical plate (202) relative to the through -hole (201), the turnover device (30) includes a hydraulic cylinder, the hydraulic cylinder includes a cylinder body (301), one end of the cylinder body (301) is rotatably connected with the vertical plate (202), the other end of the cylinder body (301) extends into the through -hole (201) and is connected with a hydraulic rod (302), the hydraulic rod (302) is telescopically arranged in the cylinder body (301) and moves linearly along the axial direction of the through -hole (201), the output of the turnover device (30) is the cylinder body (301), the middle part of the cylinder body (301) is connected with the pull -down device (40), the output end of the hydraulic rod (302) is connected with a rotating shaft (303), the rotating shaft (303) can rotate relative to the circumference of the through -hole (201), and the rotating shaft (303) can convert the linear motion of the hydraulic rod (302) into rotary motion. The surface of the rotating shaft (303) is provided with a spiral groove (304), and the connecting base (20) is provided with a guide pin (305) perpendicular to the through -hole (201) at the position corresponding to the rotating shaft (303), the end of the guide pin (305) is provided with a protrusion, the protrusion extends into the through -hole (201) and is connected with the spiral groove (304) in a sliding manner.

2. The wheel set turning and holding device according to claim 1, characterized in that, The pull -down device (40) includes a pull -down base (402), the pull -down base (402) is arranged between the through -hole (201) and the vertical plate (202), a connecting body (404) is connected above the pull -down base (402) through a locking screw (403), the cylinder body (301) is rotatably connected with the vertical plate (202) after penetrating through the bottom of the pull -down base (402), a mounting hole perpendicular to the axial direction of the cylinder body (301) is formed in the middle part of the cylinder body (301), the locking screw (403) penetrates through the mounting hole and the pull -down base (402) in sequence and is threadedly connected with the connecting body (404), and the pressure head (401) is arranged on the top of the connecting body (404).

3. The wheel set turning and holding device according to claim 2, characterized in that, The lower pull base (402) is fixedly provided with an adjusting rod (405), the upper part of the adjusting rod (405) is embedded in the connecting body (404) and is in sliding connection with the connecting body (404), a plurality of positioning holes (406) are uniformly formed in the upper part of the adjusting rod (405), and a dividing plunger (407) is arranged on one side of the connecting body (404); after the dividing plunger (407) is inserted into a certain positioning hole (406), the dividing plunger (407) can be tightly locked.

4. The wheel set turning and holding device according to claim 2, wherein The locking screw (403) is provided with a first threaded section and a second threaded section at intervals, the first threaded section is in threaded connection with the connecting body (404), and the second threaded section is provided with a nut (408) in threaded connection; after the nut (408) is locked, the nut (408) abuts against the lower pull base (402).

5. The wheel set turning and holding device according to claim 1, wherein The hydraulic cylinder is provided with a spring (306), one end of the spring (306) is connected with the cylinder body (301), and the other end of the spring (306) is in sliding connection with the hydraulic rod (302).

6. The wheel set turning and holding device according to claim 1, wherein The bed body connecting seat (10) is provided with a T-shaped groove, a rectangular block (101) is embedded at the bottom of the T-shaped groove, one side of the connecting base (20) is provided with a protrusion, the protrusion is embedded in the T-shaped groove, and the connecting base (20) is in threaded connection with the rectangular block (101) through a plurality of screws (50).

7. The wheel set turning and pressing device according to claim 1, wherein, The lower surface of the pressing head (401) is concave upward and is arc-shaped, and the lower surface is used for contacting the lower turning interface of the wheel set axle box.

8. A wheel set turning and pressing system, characterized in that, The device comprises a non-falling wheel turning bed, a swing frame (70) arranged on the non-falling wheel turning bed, and any one of the wheel set turning and pressing devices according to claims 1-7, the bed body connecting seat (10) is arranged on the non-falling wheel turning bed, an inner-axle-box wheel set (60) is arranged above the bed body connecting seat (10), the inner-axle-box wheel set (60) comprises a wheel set (601) and an axle box (602), the wheel set (601) is supported by the swing frames (70) arranged on both sides of the wheel set (601) and is lifted, the pull-down device (40) is in a horizontal state in a non-working period, the pull-down device (40) can be turned by 90 degrees to a vertical state in a working period, and the pressing head (401) is in clamping connection with the lower turning interface of the axle box (602) when the pull-down device (40) is rotated to the vertical state.

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