Automatic steering device for wheelsets

Abstract

The utility model provides a kind of automatic steering device for wheel pair, the automatic steering device includes turntable and base;Wherein, the turntable rotation is arranged on the base, the turntable is used to carry wheel pair;Driving mechanism for rotating the turntable is provided in the base, the driving mechanism includes power component, transmission component and pneumatic clutch, the power component is used to provide rotating power, the transmission component is used to transmit the rotating power of the power component to the turntable, the pneumatic clutch is used to establish or interrupt the power connection between the power component and the transmission component. The beneficial effects of the utility model include: the connection and interruption of power connection between power component and transmission component are automatically controlled by pneumatic clutch, to realize the rotation direction of wheel pair on turntable is automatically controlled and adjusted.

Description

Technical Field

[0001] This utility model relates to the technical field of railway wheelset maintenance equipment, and in particular to an automatic steering device for wheelsets. Background Technology

[0002] In railway freight car maintenance, wheelsets are key components of the running gear, and their maintenance quality directly affects the safety of train operation. During the maintenance process, railway freight car wheelsets need to be frequently adjusted in direction. Traditional methods often use manual pushing or pure mechanical transmission, which have problems such as high labor intensity, low positioning accuracy, and insufficient automation.

[0003] Currently, some electric or hydraulically driven wheel steering systems are beginning to be used. Although these devices can achieve automatic steering, they have certain limitations in actual use. For example, the system is highly dependent on high-precision sensors and actuators, hardware failures may cause the entire system to fail, and even small deviations in key components can affect overall stability. The steering system cannot be manually operated when power is interrupted, which affects maintenance efficiency.

[0004] Therefore, it is necessary to study an automatic steering device for wheelsets to solve the above problems or mitigate their effects. Utility Model Content

[0005] This invention provides an automatic steering device for wheelsets, which controls the power connection between the power component and the transmission component through a pneumatic clutch to automatically control the rotation direction of the wheelset on the turntable, thereby effectively solving the above-mentioned problems or mitigating their effects.

[0006] The automatic steering device for wheelsets of this invention may include a turntable and a base; The turntable is rotatably mounted on the base and is used to support the wheelset. The base is provided with a drive mechanism for rotating the turntable. The drive mechanism includes a power component, a transmission component, and a pneumatic clutch. The power component is used to provide rotational power, the transmission component is used to transmit the rotational power of the power component to the turntable, and the pneumatic clutch is used to establish or interrupt the power connection between the power component and the transmission component.

[0007] In one embodiment, a rotary support is provided between the turntable and the base, and a gear disk is rotatably provided inside the rotary support, with the top of the gear disk fixedly connected to the bottom of the turntable.

[0008] In one embodiment, the transmission assembly includes a commutator and a gear, the input shaft of the commutator being connected to the pneumatic clutch, the output shaft of the commutator being connected to the gear, and the gear being located within and meshing with the gear disk.

[0009] In one embodiment, the pneumatic clutch includes a fixed part, a sliding part, and a rotating part. The fixed part is fixedly mounted on the mounting base of the power assembly, the sliding part is slidably disposed within the fixed part, the rotating part is connected to the input shaft of the commutator, and the rotating part and the sliding part are provided with meshing teeth on the side close to each other.

[0010] In one embodiment, the fixing part is provided with an air pipe connector, which is used to connect to a compressed gas source.

[0011] In one embodiment, the end of the rotating part away from the sliding part is provided with a transmission groove, which matches the input shaft of the commutator to achieve torque transmission.

[0012] In one embodiment, the power assembly includes an electric motor, the output shaft of which is connected to the sliding portion of the pneumatic clutch via a spline.

[0013] In one embodiment, the power assembly further includes a mounting base, on one side of which the motor is mounted and on the other side which are provided a plurality of stop blocks, and the fixing part of the pneumatic clutch is installed between the plurality of stop blocks.

[0014] In one embodiment, side plates are provided on both sides of the top of the turntable, and the side plates are provided with placement slots for placing the wheelset.

[0015] In one embodiment, the bottom of the base is provided with a plurality of threaded holes, and an adjusting screw is matched in the threaded holes. The bottom end of the adjusting screw is provided with an adjusting foot.

[0016] The automatic steering device for wheelsets provided by this utility model has at least the following advantages compared with the prior art: This invention relates to an automatic steering device for wheelsets that uses a pneumatic clutch to automatically control the connection and disconnection of the power link between the power unit and the transmission unit, thereby automatically controlling the rotation direction of the wheelset on the turntable. When the power unit and transmission unit are engaged, this meets the requirements of railway maintenance operations, achieving precise steering positioning of the wheelset. When the power unit and transmission unit are disconnected, it retains the reliability of emergency manual operation, significantly improving the efficiency and adaptability of wheelset maintenance. Attached Figure Description

[0017] The present invention will be described in more detail below based on embodiments and with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the complete structure of the automatic steering device according to an embodiment of the present invention; Figure 2 This is a structural schematic diagram of the automatic steering device (with the protective shell removed) according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the internal structure of the automatic steering device according to an embodiment of the present invention; Figure 4 This is a structural schematic diagram of the automatic steering device from another perspective according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the connection between the gear and the gear disk in an embodiment of this utility model; Figure 6 This is a schematic diagram of the connection between the drive mechanism and the slewing support in an embodiment of this utility model; Figure 7 This is a schematic diagram of the drive mechanism according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure of a pneumatic clutch according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the commutator according to an embodiment of the present invention.

[0019] In the accompanying drawings, the same parts use the same reference numerals. The drawings are not drawn to scale.

[0020] Figure label: 1-Turntable, 101-Side plate, 102-Placement slot, 103-Limiting plate, 2-Base, 201-Adjusting foot, 202-Adjusting screw, 3-Power assembly, 301-Fixed seat, 302-Motor, 303-Stop block, 304-Support component, 305-Wire harness protection block, 4-Transmission assembly, 401-Gear, 402-Commutator, 403-Input shaft, 404-Output shaft, 405-Mounting seat, 406-Mounting cylinder, 407-Bearing mounting block, 5-Pneumatic clutch, 501-Fixed part, 502-Sliding part, 503-Clamping tooth, 504-Rotating part, 505-Transmission slot, 506-Air pipe connector, 507-Solenoid valve, 6-Slewing support, 601-Gear disc, 7-Protective shell, 8-Guard cover, 801-Maintenance cover plate, 9-Wheelset. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] like Figures 1 to 9 As shown, the automatic steering device for wheelsets of this utility model may include a turntable 1 and a base 2.

[0023] The turntable 1 is rotatably mounted on the base 2 and is used to support the wheelset 9. The base 2 is equipped with a drive mechanism for rotating the turntable 1. The drive mechanism includes a power component 3, a transmission component 4, and a pneumatic clutch 5. The power component 3 is used to provide rotational power, the transmission component 4 is used to transmit the rotational power of the power component 3 to the turntable 1, and the pneumatic clutch 5 is used to establish or interrupt the power connection between the power component 3 and the transmission component 4.

[0024] Specifically, the turntable 1 is horizontally mounted on the base 2. The turntable 1 can position and support the wheelset 9. The drive mechanism inside the base 2 can drive the turntable 1 to rotate in the horizontal plane to adjust the direction of the wheelset 9. Furthermore, the drive mechanism can control the connection and disconnection of the power connection between the power assembly 3 and the transmission assembly 4 through the pneumatic clutch 5. In this way, when the power assembly 3 and the transmission assembly 4 are connected, the precise steering positioning of the wheelset 9 can be achieved to meet the needs of railway maintenance operations; when the power assembly 3 and the transmission assembly 4 are disconnected, the reliability of emergency manual operation can be maintained, significantly improving the work efficiency and equipment adaptability of wheelset 9 maintenance.

[0025] Furthermore, such as Figure 1 As shown, the automatic steering device has a protective housing 7 on the outside of the turntable 1 and the base 2, and a protective cover 8 on the top of the turntable 1. The protective housing 7 and the protective cover 8 have dustproof and collision-proof functions, which can improve the safety performance of the device. In addition, a maintenance cover 801 for easy inspection can be provided at the center of the top of the protective cover 8.

[0026] In one example, such as Figures 2 to 6 As shown, a rotary support 6 is provided between the turntable 1 and the base 2. A gear disk 601 is rotatably provided inside the rotary support 6, and the top of the gear disk 601 is fixedly connected to the bottom of the turntable 1.

[0027] Specifically, a rotary support 6 is fixedly mounted on the base 2, and a gear disk 601 is rotatably mounted inside the rotary support 6. A turntable 1 is fixedly connected to the top of the gear disk 601. The gear disk 601 has a ring structure, with its outer side rotatably connected to the inner side of the rotary support 6, and its inner side having a toothed structure that is connected to the transmission assembly 4 for transmission. In this way, the rotary connection of the turntable 1 on the base 2 is achieved by the rotational engagement of the gear disk 601 within the rotary support 6.

[0028] In one example, such as Figures 5 to 9 As shown, the transmission assembly 4 includes a commutator 402 and a gear 401. The input shaft 403 of the commutator 402 is connected to the pneumatic clutch 5, and the output shaft 404 of the commutator 402 is connected to the gear 401. The gear 401 is located inside the gear disk 601 and meshes with the gear disk 601.

[0029] Specifically, the input end of the commutator 402 is connected to the pneumatic clutch 5 via the input shaft 403 to receive rotational power from the power assembly 3. The output end of the commutator 402 is connected to the gear 401 via the output shaft 404, and the gear 401 meshes with the gear disk 601 to output the reversed rotational power to the gear disk 601, thereby adjusting the direction of the wheelset 9 on the turntable 1.

[0030] Furthermore, a mounting base 405 is provided inside the base 2, and the commutator 402 is disposed within the mounting base 405. The output shaft 404 of the commutator 402 is a gear adapter shaft, on which a mounting cylinder 406 is provided, and a gear 401 is disposed on the mounting cylinder 406. In this way, the commutator 402 drives the gear 401 to rotate through the gear adapter shaft and the mounting cylinder 406, and the gear 401 drives the turntable 1 to rotate through meshing with the gear disk 601.

[0031] Furthermore, a bearing mounting block 407 is provided on the top of the mounting base 405, and the gear adapter shaft is rotatably mounted on the bearing mounting block 407.

[0032] In one example, such as Figures 6 to 8 As shown, the pneumatic clutch 5 includes a fixed part 501, a sliding part 502 and a rotating part 504. The fixed part 501 is fixedly installed on the fixed seat 301 of the power assembly 3. The sliding part 502 is slidably disposed in the fixed part 501. The rotating part 504 is connected to the input shaft 403 of the commutator 402, and the rotating part 504 and the sliding part 502 are provided with meshing teeth 503 on the side close to each other.

[0033] Specifically, the fixed part 501 is fixedly installed on the fixed seat 301 of the power assembly 3, the sliding part 502 is slidably disposed in the fixed part 501 and is connected to the power source of the power assembly 3, the rotating part 504 is connected to the input shaft 403 of the commutator 402, and the rotating part 504 and the sliding part 502 are provided with meshing teeth 503 on the side close to each other. In this way, when the sliding part 502 slides out towards the rotating part 504 until the teeth 503 between the sliding part 502 and the rotating part 504 are engaged, a power transmission path is established to facilitate the precise steering positioning of the wheelset 9; when the sliding part 502 slides away from the rotating part 504 and retracts until the teeth 503 between the sliding part 502 and the rotating part 504 are separated, the device can be switched to manual mode, allowing manual free rotation and adjustment of the turntable 1.

[0034] In one example, the fixing part 501 is provided with an air pipe connector 506, which is used to connect to a compressed gas source (not shown in the figure).

[0035] Specifically, the fixed part 501 of the pneumatic clutch 5 is connected to the air source of compressed gas through the air pipe joint 506. When compressed gas is introduced into the fixed part 501, the sliding part 502 can be driven to slide out towards the rotating part 504 and engage with the rotating part 504. When the supply of compressed gas to the fixed part 501 is interrupted, the sliding part 502 automatically slides back away from the rotating part 504 and separates from the rotating part 504.

[0036] Furthermore, the automatic steering device also includes a solenoid valve 507, which can control the connection and interruption of the air pipe connector 506 with the air source, thereby controlling the pneumatic clutch 5 to achieve intelligent switching of power transmission.

[0037] Thus, during the maintenance and transport of railway freight car wheelsets 9, the automatic steering device utilizes compressed air to drive the pneumatic clutch 5. The pneumatic clutch 5 is connected to an air source via an air pipe connector 506, and the compressed air is controlled by a solenoid valve 507. The intelligent switching of power transmission is achieved by driving the clutch assembly with compressed air. When the air source is connected, the air pressure causes the locking teeth 503 between the sliding part 502 and the rotating part 504 to engage, establishing a power transmission path and achieving precise steering positioning of the wheelset 9. When the air source is interrupted, the sliding part 502 and the rotating part 504 automatically disengage, and the device can switch to manual mode, allowing for manual rotation and adjustment. In this way, the automatic steering device can achieve automatic steering adjustment of the wheelset 9.

[0038] In one example, the end of the rotating part 504 away from the sliding part 502 is provided with a transmission groove 505, which matches the input shaft 403 of the commutator 402 to achieve torque transmission.

[0039] Specifically, the rotating part 504 has a transmission groove 505 at the end away from the sliding part 502, and the input end of the commutator 402 is provided with an input shaft 403 that cooperates with the transmission groove 505. That is, the rotating part 504 drives the input shaft 403 to rotate through the transmission groove 505 to realize the power input of the commutator 402.

[0040] In one example, the power assembly 3 includes a motor 302, the output shaft 404 of which is connected to the sliding portion 502 of the pneumatic clutch 5 via a spline.

[0041] Specifically, the output shaft 404 of the motor 302 is provided with an axial spline, and the inner hole of the sliding part 502 is provided with a spline groove that matches its axial spline. The sliding part 502 can move along the spline axis under air pressure to facilitate the engagement or disengagement of the sliding part 502 and the rotating part 504. In this way, the output shaft 404 of the motor 302 and the sliding part 502 of the clutch are connected by a spline, realizing the dual functions of axial sliding and circumferential transmission.

[0042] In one example, such as Figure 6 and Figure 7 As shown, the power assembly 3 also includes a mounting base 301. A motor 302 is mounted on one side of the mounting base 301, and a plurality of stop blocks 303 are provided on the other side. The fixing part 501 of the pneumatic clutch 5 is installed between the plurality of stop blocks 303.

[0043] Specifically, a fixed seat 301 is provided inside the base 2, and a motor 302 and a stop block 303 are respectively installed on both sides of the fixed seat 301. A fixing part 501 is provided between multiple stop blocks 303.

[0044] Furthermore, a support member 304 is provided on the top of the fixing base 301, and a wire harness protection block 305 is provided on the top of the support member 304.

[0045] In one example, such as Figure 3 As shown, side plates 101 are provided on both sides of the top of the turntable 1, and placement slots 102 for placing wheelsets 9 are provided on the side plates 101.

[0046] Specifically, vertically erected side plates 101 are fixedly installed on both sides of the top of the turntable 1. The top of the side plates 101 is provided with a placement groove 102, and the two wheel hubs of the wheelset 9 can be placed on the placement groove 102 to provide positioning support for the wheelset 9.

[0047] Furthermore, the placement groove 102 can be a V-shaped groove. A limit plate 103 can be provided on the outer side of the side plate 101 to achieve axial positioning of the wheelset 9.

[0048] In one example, such as Figure 2 and Figure 4 As shown, the bottom of the base 2 is provided with multiple threaded holes, and an adjusting screw 202 is matched in the threaded holes. The bottom end of the adjusting screw 202 is provided with an adjusting foot 201. In this way, the adjusting foot 201 can be supported by the screw 202 and the threaded hole of the base 2 through the screw engagement, so the height and level of the base 2 can be adjusted by rotating the adjusting screw 202.

[0049] In summary, the beneficial effects of this utility model include at least the following: This invention's automatic steering device employs a control method combining pneumatic drive and mechanical transmission. Compressed air drives a pneumatic clutch to achieve intelligent switching of power transmission. When the air supply is connected, the air pressure automatically engages the clutch assembly, establishing a power transmission path and achieving precise steering positioning of the wheelset. In the event of an air supply interruption, the clutch assembly automatically disengages, and the device can switch to manual control mode, allowing for free manual rotation and adjustment. This not only meets the needs of railway maintenance operations but also retains the reliability of emergency manual operation, significantly improving the efficiency and adaptability of wheelset maintenance.

[0050] Although the present invention has been described with reference to preferred embodiments, various modifications can be made thereto and components can be replaced with equivalents without departing from the scope of the invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner, provided there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An automatic steering device for a wheel set, characterized by, The automatic steering device includes a turntable and a base; The turntable is rotatably mounted on the base and is used to support the wheelset. The base is provided with a drive mechanism for rotating the turntable. The drive mechanism includes a power component, a transmission component, and a pneumatic clutch. The power component is used to provide rotational power, the transmission component is used to transmit the rotational power of the power component to the turntable, and the pneumatic clutch is used to establish or interrupt the power connection between the power component and the transmission component.

2. The automatic steering device for wheelsets according to claim 1, characterized in that, A rotary support is provided between the turntable and the base, and a gear disk is rotatably provided inside the rotary support. The top of the gear disk is fixedly connected to the bottom of the turntable.

3. The automatic steering device for wheelsets according to claim 2, characterized in that, The transmission assembly includes a commutator and a gear. The input shaft of the commutator is connected to the pneumatic clutch, and the output shaft of the commutator is connected to the gear. The gear is located inside the gear disk and meshes with the gear disk.

4. The automatic steering device for wheelsets according to claim 3, characterized in that, The pneumatic clutch includes a fixed part, a sliding part, and a rotating part. The fixed part is fixedly installed on the mounting base of the power assembly. The sliding part is slidably disposed within the fixed part. The rotating part is connected to the input shaft of the commutator, and the rotating part and the sliding part are provided with meshing teeth on their respective sides.

5. The automatic steering device for wheelsets according to claim 4, characterized in that, The fixing part is provided with an air pipe connector, which is used to connect to a compressed gas source.

6. The automatic steering device for wheelsets according to claim 4, characterized in that, The rotating part has a transmission groove at the end away from the sliding part, and the transmission groove is matched with the input shaft of the commutator to realize torque transmission.

7. The automatic steering device for wheelsets according to claim 1, characterized in that, The power assembly includes a motor, and the output shaft of the motor is connected to the sliding part of the pneumatic clutch via a spline.

8. The automatic steering device for wheelsets according to claim 7, characterized in that, The power assembly also includes a mounting base, on one side of which the motor is mounted and on the other side which are provided multiple stop blocks. The fixing part of the pneumatic clutch is installed between the multiple stop blocks.

9. The automatic steering device for wheelsets according to claim 1, characterized in that, The turntable has side plates on both sides of its top, and the side plates have slots for placing the wheelsets.

10. The automatic steering device for wheelsets according to claim 1, characterized in that, The base has multiple threaded holes at its bottom, and an adjusting screw is fitted inside each threaded hole. The bottom end of the adjusting screw is fitted with an adjusting foot.

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