Wheel set jacking and rotating device

Abstract

The utility model belongs to the technical field of train wheel set section repair equipment, and discloses a wheel set jacking and rotating device which comprises a seat body, a wheel jacking mechanism and a wheel rotating mechanism. Rails are arranged on the two sides of the base body and used for wheel sets to pass through, and operation sections are arranged on the rails. The wheel jacking mechanism is arranged in the seat body and is used for driving a wheel set positioned in an operation section to be switched among a driving position, a maintenance position and a transition position; the rotating wheel mechanism is arranged in the seat body and is used for driving a wheel set at an operation section to rotate; driving wheels are arranged at the two ends of the rotating wheel mechanism; and the track is provided with a positioning part, so that the wheel pair stays at an operation section. The wheel set can be jacked up through the wheel jacking device, rotation of the wheel set is achieved through the wheel rotating mechanism, and therefore the wheel set can be overhauled more quickly.

Description

Technical Field

[0001] The utility model belongs to the technical field of train wheel set repair equipment, in particular to a wheel set top turning device. Background Art

[0002] For train section repairs, at the wheelset receiving stage, it is necessary to carry out processes such as axle appearance and technical status inspection, bearing appearance and technical status inspection, wheelset size measurement, etc., and conduct railway freight car safety prevention system information verification and establish an "Axle Card". The inspection results will be used to determine the scope of wheelset repair.

[0003] At present, for the revenue link of wheelset repair in train sections, driving the wheelset to the maintenance position is basically done manually, so there is a problem of low operating efficiency. Utility Model Content

[0004] In order to solve the above technical problems, the utility model discloses a wheelset jacking device, which can jack up the wheelset through the jacking wheel device and realize the rotation of the wheelset by using the turning wheel mechanism, so as to complete the wheelset maintenance more quickly.

[0005] The specific technical solution of the utility model is as follows:

[0006] A wheelset top-turning device, comprising:

[0007] A seat body, with tracks on both sides of the seat body for the wheelset to travel, and a working section on the tracks;

[0008] A top wheel mechanism, which is disposed in the seat body and is used to drive the wheelset located in the working section to switch between the driving position, the maintenance position and the transition position; and

[0009] A rotating wheel mechanism, which is arranged in the seat body and is used to drive the wheelset located in the working section to rotate;

[0010] Wherein, driving wheels are arranged at both ends of the rotating wheel mechanism; and a positioning part is provided on the track so that the wheel pair stays in the working section.

[0011] When the wheelset is traveling in the working section, it can stay in the working section due to the presence of the positioning part; at this time, the wheelset can be switched to the maintenance position using the top wheel mechanism, then a gap is generated between the wheelset and the track, and the wheelset only contacts the top wheel mechanism and the driving wheel. Therefore, when the rotating mechanism is activated, the wheelset can rotate around its own axis at a predetermined position, thereby quickly realizing the maintenance of the wheelset; after the maintenance is completed, the top wheel mechanism switches the wheelset to the transition position, then relative to the upper surface of the track, the lowest point of the wheelset passes through the top of the driving wheel, so the wheelset can flip over the driving wheel, thereby being able to continue moving along the track, allowing the wheelset to leave the working section, and then the top wheel mechanism switches back to the driving position, waiting for the next wheelset to enter the working section for maintenance.

[0012] Preferably, the top wheel mechanism comprises:

[0013] A lifting rod, wherein the lifting rod is located between the two side rails, and the axis of the lifting rod is parallel to the axis of the wheelset; and

[0014] A driving device 1, used for driving the lifting rod to switch between the inspection position, the driving position and the transition position, wherein the driving device 1 is arranged on the seat body;

[0015] Wherein, the lifting direction of the driving device 1 is inclined to the extending direction of the track.

[0016] When the jacking rod is in the driving position, the jacking rod contacts the wheelset under the action of the driving device 1. When the driving continues, the wheelset can be lifted off the track. After stopping at the maintenance position, the wheelset maintenance can be carried out. After the maintenance is completed, the jacking rod continues to be driven to move. In this process, the center of gravity of the wheelset shifts to the side away from the working section, thereby causing the wheelset to flip over the driving wheel.

[0017] Preferably, driven wheels are provided at both ends of the lifting rod.

[0018] The driven wheel can rotate on the lifting rod, so when the rotating wheel mechanism drives the wheelset to rotate through the driving wheel, the wheelset can be better rotated at a preset position.

[0019] Preferably, the rotating wheel mechanism comprises:

[0020] A rotating shaft, the rotating shaft is rotatably connected to the seat body along its axis, and the axis of the rotating shaft is parallel to the axis of the wheelset; and

[0021] A second driving device, used for driving the rotating shaft to rotate around its own axis, and the second driving device is arranged on the seat body;

[0022] Wherein, the driving wheel is arranged at the shaft end of the rotating shaft.

[0023] The relative positions of the rotating shaft and the seat body remain unchanged. When the second driving device is activated, the rotating shaft rotates relative to the seat body, thereby causing the driving wheel to rotate, thereby driving the wheel pair to rotate.

[0024] Preferably, it also includes:

[0025] A swing arm, one end of which is connected to the top wheel mechanism, and the other end of which is connected to the rotating wheel mechanism.

[0026] The top wheel mechanism and the rotating wheel mechanism are connected by a swing arm, so that the top wheel mechanism can be supported by the rotating wheel mechanism, thereby increasing the driving stroke of the driving device 1 within a limited assembly space and making good use of the rotating wheel mechanism to achieve support stability for the top wheel mechanism.

[0027] Preferably, it also includes:

[0028] The piston mechanism is arranged on the seat body and is used to prohibit the free end of the top wheel mechanism from switching the wheelset from the driving position to the maintenance position.

[0029] The piston mechanism can avoid accidental start-up of the driving device 1, thereby ensuring that the wheelset can enter the working section and be limited by the driving wheel.

[0030] Preferably, the piston mechanism comprises:

[0031] A piston pressing sleeve, wherein the piston pressing sleeve is arranged on the seat body;

[0032] A piston member, wherein the piston member is slidably connected in the piston sleeve; and

[0033] A third driving device, the third driving device is arranged on the seat body and is used to drive the piston member to switch between the avoidance position and the blocking position;

[0034] Wherein, the free end of the top wheel mechanism is provided with a baffle, and when the piston member is switched to the blocking position, the piston member cooperates with the baffle.

[0035] When the wheel-lifting mechanism is in the driving position, the piston member is in the blocking position, and the piston member is in an extended state. At this time, the piston member cooperates with the baffle to prevent the wheel-lifting mechanism from lifting the wheelset; and when the piston member is in the avoidance position, the piston member is in a retracted state. At this time, the piston member cannot limit the movement of the wheel-lifting mechanism, so that the wheel-lifting mechanism can lift the wheelset.

[0036] Preferably, it further comprises a limiting mechanism, wherein the limiting mechanism is arranged on the outside of the seat body or the track;

[0037] The limiting mechanism comprises:

[0038] A limit block, which is rotatably connected to the seat or the track, and is used to limit the wheelset from entering the working section or to allow the wheelset to enter the working section. ; and

[0039] A driving device four is arranged on the seat body or the track, and is used to drive the limit block to swing on the seat body or the track.

[0040] The limit mechanism can prohibit the wheelset from entering the working section. When the driving device 4 is started, the limit block is flipped away from the seat body or the track, thereby making way for the wheelset to enter the working section. When the limit mechanism returns to the initial position, the next wheelset can be put into a state of preparation for maintenance.

[0041] Preferably, it also includes a blocking arm mechanism, and the blocking arm mechanism is arranged on the outside of the seat body or the track;

[0042] The blocking arm mechanism comprises:

[0043] A stop arm, which is rotatably disposed on a seat or a track, and is also connected to the seat or the track via an elastic member; and

[0044] A limit stop post, which is arranged on the seat body or the track and is used to limit excessive rotation of the stop arm;

[0045] Wherein, in the non-working state, the elastic member drives the blocking arm member to abut against the limit blocking column;

[0046] When the wheelset enters the working section, the wheelset drives the blocking arm to rotate in a direction away from the limiting blocking column.

[0047] The stop arm member is pressed against the limit stop column under the action of the elastic member. At this time, if the wheelset travels at the position of the stop arm member, the stop arm member can prevent the wheelset from continuing to move. When the wheelset increases the power, the wheelset causes the elastic member to deform, so that the wheelset drives the stop arm member to below the upper plane of the track, thereby passing through there and entering the working section. Afterwards, the stop arm member returns to its initial position under the action of the elastic member to prevent the next wheelset from entering the working section.

[0048] Preferably, it also includes:

[0049] A cover plate is connected to the base and is used to cover the top wheel mechanism and the rotating wheel mechanism. The cover plate has a notch for avoiding the top wheel mechanism.

[0050] The cover plate can prevent external impurities from entering the seat body, thereby effectively extending the time interval for maintenance and also greatly improving the service life of the top rotating device.

[0051] Compared with the prior art, the utility model can quickly drive the wheelset to the maintenance position through the top wheel mechanism, and assist the wheelset in maintenance through the rotating wheel mechanism, and finally, driven by the top wheel mechanism, the wheelset can quickly turn over the driving wheel and leave the working section after the maintenance is completed, thereby improving the time efficiency in the process of successively maintaining multiple wheelsets; the utility model can also prevent the wheelset from accidentally entering the working section and affecting the maintenance of the current wheelset, thereby having higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of an embodiment of the utility model;

[0053] Figure 2 This is a schematic diagram of a hidden cover plate according to an embodiment of the utility model;

[0054] Figure 3 for Figure 2 A magnified image of point A;

[0055] Figure 4 for Figure 2 The enlarged view of point B;

[0056] Figure 5 It is a schematic diagram of the cooperation between the piston mechanism and the lifting rod in the embodiment of the utility model.

[0057] In the figure: 1-base; 2-track; 3-driving wheel; 4-lifting rod; 5-driving device one; 6-driven wheel; 7-rotating shaft; 8-driving device two; 9-support seat; 10-swing arm; 11-piston sleeve; 12-piston member; 13-driving device three; 14-baffle; 15-limiting block; 16-driving device four; 17-blocking arm member; 18-limiting blocking column; 19-elastic member; 20-cover plate; 21-notch; 22-cover plate support. DETAILED DESCRIPTION

[0058] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0059] This embodiment utilizes a top-turning mechanism to specifically realize the cleaning of the wheel set shaft end mark plate and the cleaning of the bearing outer ring. A cleaning device is provided on one or both sides of the top-turning device. It can be seen that when the wheelset is switched to the maintenance position, the corresponding cleaning operation can be performed through the cleaning device.

[0060] like Figure 1 to Figure 5 As shown, a wheelset top turning device comprises a base body 1, a top wheel mechanism and a rotating wheel mechanism; tracks 2 are arranged on both sides of the base body 1 for the wheelset to travel, and an operating section is arranged on the track 2; the top wheel mechanism is arranged in the base body 1, and is used to drive the wheelset located in the operating section to switch between the driving position, the maintenance position and the transition position; the rotating wheel mechanism is arranged in the base body 1, and is used to drive the wheelset located in the operating section to rotate; driving wheels 3 are arranged at both ends of the rotating wheel mechanism; a positioning portion is provided on the track to enable the wheelset to stay in the operating section.

[0061] In this embodiment, when the top wheel mechanism is in the driving position, the wheelset can move normally on the track 2; when the top wheel mechanism is in the maintenance position, the wheelset is lifted, and there is a certain gap between the wheelset and the track 2, so the wheelset cannot move normally on the track 2; when the top wheel mechanism is in the transition position, the wheelset is further lifted. It can be seen that when the wheelset enters the working section, the driving wheel 3 becomes the lifting fulcrum of the wheelset. Therefore, in the process of the top wheel mechanism gradually lifting to the transition position, the wheelset can turn over the driving wheel 3, so that the wheelset can leave the working section. In other words, with the upper surface of the track 2 as the reference, the driving position, the maintenance position, and the transition position are formed from low to high in sequence. It should be noted that when the wheelset leaves the working section, the top wheel mechanism returns to the driving position, so that the next wheelset to be repaired can enter the working section for maintenance.

[0062] In some technical solutions, the positioning portion is a driving wheel 3, and the driving wheel 3 is located on an extension path of the track 2 that can block the movement of the wheelset, thereby stopping the wheelset in the working section; in other embodiments, the positioning portion is a groove reserved on the track 2, and without applying force to the wheelset, the wheelset cannot continue to move forward, thereby staying in the working section.

[0063] like Figure 2 As shown, in this embodiment, the wheel jacking mechanism includes a lifting rod 4 and a driving device 5; the lifting rod 4 is located between the two side rails 2, and the axis of the lifting rod 4 is parallel to the axis of the wheelset; the driving device 5 is used to drive the lifting rod 4 to switch between the maintenance position, the driving position, and the transition position, and the driving device 5 is arranged on the base body 1; the lifting direction of the driving device 5 is inclined to the movement direction of the wheelset.

[0064] The driving device 5 is a telescopic rod device. The cylinder of the driving device 5 is fixedly arranged on the base 1, and its telescopic rod is arranged obliquely to the track 2, so that the driving device 5 can lift the wheelset obliquely, thereby ensuring that when the wheelset is switched from the maintenance position to the transition position, the wheelset can turn over the driving wheel 3. In order to further ensure the lifting effect, the fixed end of the driving device 5 is hinged to the base 1, and the free end of the driving device 5 is hinged to the lifting rod 4, so that during the operation of the driving device 5, the movement of the lifting wheel mechanism is arc-shaped, thereby satisfying the effect of lifting the wheelset obliquely upward.

[0065] In order to enable the wheelset to rotate efficiently during maintenance, driven wheels 6 are provided at both ends of the jacking rod 4 on the basis of the driving wheel 3 provided in the wheel mechanism. That is to say, under the action of friction, when the driving wheel 3 rotates, the driven wheel 6 also rotates at the same time through the wheelset. At this time, compared with the technical solution without the driven wheel 6, the wheelset can be prevented from being stuck in rotation, thereby better meeting the wheelset maintenance, specifically, better meeting the cleaning of the wheelset shaft end mark plate and the bearing outer ring in this embodiment.

[0066] like Figure 2 As shown, in this embodiment, the rotating wheel mechanism includes a rotating shaft 7 and a driving device 8; the rotating shaft 7 is connected to the base body 1 along its axis, and the axis of the rotating shaft 7 is parallel to the axis of the wheelset; the driving device 8 is used to drive the rotating shaft 7 to rotate around its own axis, and the driving device 8 is arranged on the base body 1; the driving wheel 3 is arranged at the shaft end of the rotating shaft 7.

[0067] The seat body 1 is provided with support seats 9 that match the two ends of the rotating shaft 7, so the position of the rotating shaft 7 remains unchanged relative to the seat body 1, and it only has the ability to rotate around its own axis. When the wheelset is located at the maintenance position, the wheelset is located between the driving wheel 3 and the driven wheel 6. The driving wheel 3 and the driven wheel 6 can be used to well support the wheelset. On this basis, when the driving device 2 8 is activated, the rotating shaft 7 drives the driving wheel 3 to rotate, and the driving wheel 3 can drive the wheelset to rotate. In this embodiment, the driving device 2 8 is a chain mechanism, that is, the motor is activated to drive the gear on the motor, and then the power is transmitted to the gear on the rotating shaft 7 through the chain, so as to realize the rotation of the rotating shaft 7. Of course, if space permits, the above two gears can also be directly meshed.

[0068] In order to better use this embodiment, it also includes a swing arm 10, one end of which is connected to the jacking wheel mechanism, and the other end is connected to the rotating wheel mechanism. The lifting direction of the driving device 5 is inclined to the extension direction of the track 2, so the swing arm 10 provides auxiliary support force for the lifting rod for the driving device 5. Specifically, one end of the swing arm 10 is rotationally connected to the lifting rod 4, and the other end is rotationally connected to the rotating shaft 7. Therefore, when the jacking mechanism is in a non-driving position, the swing arm 10 can provide appropriate support force for the jacking mechanism to ensure that the wheel pair can be supported by the driving wheel 3 and the driven wheel 6. In order to ensure the stability of the support, the swing arm 10 has two, which are respectively located at both ends of the rotating shaft 7.

[0069] like Figure 5 As shown, in this embodiment, a piston mechanism is also included, and the piston mechanism is arranged on the seat body 1, which is used to prohibit the free end of the top wheel mechanism from switching the wheelset from the driving position to the maintenance position. In other words, when the top wheel mechanism is in the driving position, the piston mechanism is actuated and limits the movement of the top wheel mechanism, thereby ensuring that the wheelset can safely enter the working section. Specifically, the piston mechanism includes a piston sleeve 11, a piston member 12 and a driving device three 13; the piston sleeve 11 is arranged on the seat body 1; the piston member 12 is slidably connected in the piston sleeve 11; the driving device three 13 is arranged on the seat body 1, and is used to drive the piston member 12 to switch between the avoidance position and the blocking position; the free end of the top wheel mechanism has a baffle 14, and when the piston member 12 switches to the blocking position, the piston member 12 cooperates with the baffle 14.

[0070] The baffle 14 is arranged on the lifting rod 4, and the driving device 13 is a telescopic rod mechanism. The piston sleeve 11 can provide motion limiting for the piston member 12, and can also provide motion support for the piston member 12, so as to meet the requirements of the piston member 12 to realize its function. When the piston member 12 is in the blocking position, the baffle 14 is located on the lower side of the piston member 12, so when the driving device 15 is actuated, the baffle 14 is limited by the piston member 12 and cannot move upward. When the piston member 12 is in the avoidance position, the piston member 12 is retracted into the piston sleeve 11, so that the baffle 14 can move upward, so that the lifting rod 4 can lift the wheelset.

[0071] like Figure 3 As shown, in this embodiment, a limiting mechanism is also included, and the limiting mechanism is arranged on the outside of the seat body 1; the limiting mechanism includes a limiting block 15 and a driving device 16; the limiting block 15 is rotatably connected to the seat body 1, and is used to limit the wheelset from entering the working section or to allow the wheelset to enter the working section; the driving device 16 is arranged on the seat body 1, and is used to drive the limiting block 15 to swing on the seat body 1. This embodiment has two symmetrically arranged limiting mechanisms, which are respectively located on the outside of the two sides of the seat body 1. When the planes where the two are located are parallel and parallel to the side of the track 2, the wheelset can be blocked from entering the working section. When the two move in opposite directions, the passage to the working section is opened, so that the wheelset can enter the working section.

[0072] When the wheelset is located at the limiting mechanism, the limiting mechanism allows the wheelset to be inspected there, waiting for the previous wheelset to complete the inspection. The driving device 4 16 is a telescopic rod mechanism, so when the driving device 4 16 is in motion, it can pull the limiting block 15 to flip, thereby achieving avoidance of the wheelset. It should be noted that the driving device 4 16 is rotatably connected to the seat body 1 and is rotatably connected to the limiting block 15, thereby better achieving the drive of the limiting block 15. In this embodiment, the limiting block 15 is provided with a buffer pad 17 to achieve shock absorption and avoid damage to the limiting mechanism caused by the rigid impact of the wheelset.

[0073] like Figure 4 As shown, in this embodiment, it also includes an arm blocking mechanism, which is arranged on the outside of the base body 1; the arm blocking mechanism includes an arm blocking member 18 and a limit blocking column 19; the arm blocking member 18 is rotatably arranged on the base body 1, and the arm blocking member 18 is also connected to the base body 1 through an elastic member 20; the limit blocking column 19 is arranged on the base body 1, and is used to limit excessive rotation of the arm blocking member 18; in the non-working state, the elastic member 20 drives the arm blocking member 18 to rest against the limit blocking column 19; when the wheelset enters the working section, the wheelset drives the arm blocking member 18 to rotate in the direction away from the limit blocking column 19.

[0074] This embodiment has two symmetrically arranged arm-blocking mechanisms, both located on the outside of the seat body 1. The arm-blocking mechanism is also located between the working section and the limiting mechanism, which enables the wheelset to enter the working section more smoothly and at a low speed. In the initial state, one end of the arm-blocking member 18 extends out of the upper surface of the track 2, so that before the wheelset contacts the driving wheel 3, it first contacts the arm-blocking member 18 to achieve buffering, and then after the force of the wheelset passing through is increased, the wheelset causes the elastic member 20 to continuously deform, thereby causing the arm-blocking member 18 to flip, and one end of the arm-blocking member 18 extending out of the upper surface of the track 2 is immersed in the inner side of the seat body 1, so that the wheelset passes through there. The elastic member 20 can be a cylindrical spring or a torsion spring. When the elastic member 20 is a cylindrical spring, one end of the elastic member 20 is connected to the arm member 18, and the other end is connected to the seat body 1. At this time, the continuous force on the arm member 18 can be achieved by compressing or stretching the elastic member 20; when the elastic member 20 is a torsion spring, the elastic member 20 is arranged between the arm member 18 and the seat body 1, so when the arm member 18 rotates, the elastic member 20 can also be deformed. It can be seen that the above two technical solutions can restore the arm member 18 to its initial state under the restoring force of the elastic member 20 after the wheelset passes, and in this state, the limit stop column 19 prevents the arm member 18 from excessively rotating under the restoring force of the elastic member 20, resulting in the inability to limit the wheelset. The arm member 18 is provided with a buffer pad 21 to further reduce the rigid impact of the wheelset.

[0075] In this embodiment, a cover plate 22 is further included, the cover plate 22 is connected to the base, and is used to cover the top wheel mechanism and the rotating wheel mechanism, and the cover plate 22 has a notch 23 for avoiding the top wheel mechanism. The cover plate 22 is assembled on the top of the base body 1 through a cover plate support 24, and the cover plate 22 can also cover the piston mechanism, which can prevent dust, water stains, etc. from entering the base body 1 and affecting the use of the top wheel mechanism, the rotating wheel mechanism, and the piston mechanism.

[0076] Since the lifting direction of the wheel lifting mechanism is inclined relative to the extension direction of the track 2, the extension direction of the notch 23 is also inclined relative to the extension direction of the track 2, thereby preventing the cover plate 22 from interfering with the movement of the wheel lifting mechanism and failing to lift the wheelset.

[0077] It should be noted that, in some other embodiments, the limiting mechanism and the arm blocking mechanism may also be provided on the track 2, which will not be described in detail here.

[0078] Therefore, when the wheelset rolls into the working section, the lifting rod 4 lifts the wheelset to the maintenance position, cleans the shaft end mark plate, and the wheel mechanism drives the wheelset to rotate, so that the outer ring of the bearing can be cleaned. After the cleaning is completed, the lifting rod 4 continues to rise and reaches the transition position, so that the center of gravity of the wheelset passes over the driving wheel 3, so that the wheelset passes over the driving wheel 3 under the action of its own gravity, and the wheelset is pushed out of the working section by the lifting rod 4, thereby reducing the working time of the workers and improving the working efficiency. In addition, since the position of the rotating shaft 7 remains unchanged, the lifting mechanism can lift the wheelset to a predetermined position on the basis of relatively determining the maintenance position, so that the wheelset is in a centered state relative to the maintenance equipment, thereby further improving the working efficiency.

[0079] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention. The protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A wheelset top turning device, characterized in that: include: A seat body, with tracks on both sides of the seat body for wheelsets to pass through, and working sections on the tracks; A top wheel mechanism, which is disposed in the seat body and is used to drive the wheelset located in the working section to switch between the driving position, the maintenance position and the transition position; and A rotating wheel mechanism, which is arranged in the seat body and is used to drive the wheelset located in the working section to rotate; Wherein, driving wheels are arranged at both ends of the rotating wheel mechanism; and a positioning part is provided on the track so that the wheel pair stays in the working section.

2. A wheelset top turning device as claimed in claim 1, characterized in that: The top wheel mechanism comprises: A lifting rod, wherein the lifting rod is located between the two side rails, and the axis of the lifting rod is parallel to the axis of the wheelset; and A driving device 1, used for driving the lifting rod to switch between the inspection position, the driving position and the transition position, wherein the driving device 1 is arranged on the seat body; Wherein, the lifting direction of the driving device 1 is inclined to the extending direction of the track.

3. A wheelset top turning device as claimed in claim 2, characterized in that: Both ends of the jacking rod are provided with driven wheels.

4. A wheelset top turning device as claimed in claim 1, characterized in that: The rotating wheel mechanism comprises: A rotating shaft, the rotating shaft is rotatably connected to the seat body along its axis, and the axis of the rotating shaft is parallel to the axis of the wheelset; and A second driving device, used for driving the rotating shaft to rotate around its own axis, and the second driving device is arranged on the seat body; Wherein, the driving wheel is arranged at the shaft end of the rotating shaft.

5. The wheelset top turning device according to claim 1, characterized in that: Also includes: A swing arm, one end of which is connected to the top wheel mechanism, and the other end of which is connected to the rotating wheel mechanism.

6. A wheelset top turning device as claimed in claim 1, characterized in that: Also includes: The piston mechanism is arranged on the seat body and is used to prohibit the free end of the top wheel mechanism from switching the wheelset from the driving position to the maintenance position.

7. A wheelset top turning device as claimed in claim 6, characterized in that: The piston mechanism comprises: A piston pressing sleeve, wherein the piston pressing sleeve is arranged on the seat body; A piston member, wherein the piston member is slidably connected in the piston sleeve; and A third driving device, the third driving device being arranged on the seat body and used for driving the piston member to switch between the avoidance position and the blocking position; Wherein, the free end of the top wheel mechanism is provided with a baffle, and when the piston member is switched to the blocking position, the piston member cooperates with the baffle.

8. The wheelset top turning device according to claim 1, characterized in that: It also includes a limiting mechanism, which is arranged on the outside of the seat body or the track; The limiting mechanism comprises: A limit block, which is rotatably connected to the seat or the track and is used to limit the wheelset from entering the working section or to allow the wheelset to enter the working section; and A driving device four is arranged on the seat body or the track, and is used to drive the limit block to swing on the seat body or the track.

9. The wheelset top turning device according to claim 1, characterized in that: It also includes a blocking arm mechanism, which is arranged on the outside of the seat body or the track; The blocking arm mechanism comprises: A stop arm, which is rotatably disposed on a seat or a track, and is also connected to the seat or the track via an elastic member; and A limit stop post, which is arranged on the seat body or the track and is used to limit excessive rotation of the stop arm; Wherein, in the non-working state, the elastic member drives the blocking arm member to abut against the limit blocking column; When the wheelset enters the working section, the wheelset drives the blocking arm to rotate in a direction away from the limiting blocking column.

10. The wheelset top-turning device according to claim 1, characterized in that: Also includes: A cover plate is connected to the base and is used to cover the top wheel mechanism and the rotating wheel mechanism. The cover plate has a notch for avoiding the top wheel mechanism.

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