Auxiliary dismounting and mounting device for motor train unit wheel pair maintenance

Abstract

The utility model discloses a motor train unit wheel set maintenance auxiliary dismounting device which comprises a cross beam frame, two sets of walking mechanisms, an electric driving mechanism, an adjusting rod mechanism, a hoop mechanism, a jacking mechanism and a clamping mechanism, the two sets of walking mechanisms are installed at the two ends of the cross beam frame respectively, and a hoop supporting plate is fixedly installed at the outer end of each walking mechanism; the electric driving mechanism is mounted on the cross beam frame and is in transmission connection with the walking mechanism; one end of the adjusting rod mechanism is fixedly connected with the hoop supporting plate, and the other end is connected with the hoop mechanism; the jacking mechanism is installed on the cross beam frame and located between the two walking mechanisms, and the clamping mechanism is movably installed on the top of the jacking mechanism. The motor train unit wheel pair maintenance auxiliary dismounting device is compact and small in structural design and convenient to move; wheel set posture auxiliary force adjustment and fine adjustment are achieved; alignment is accurate and fast, and the installation efficiency is improved; electric movement is flexible, manpower is saved, and labor intensity is reduced.

Description

Technical Field

[0001] This utility model relates to the field of wheelset maintenance tooling technology, specifically to an auxiliary disassembly and assembly device for EMU wheelset maintenance, used in the rail transit field, especially when replacing EMU wheelsets in temporary repair workshops. Background Technology

[0002] Gearboxes are installed on the axles of the high-speed train wheelsets. During operation, the torsional torque of the traction motor is effectively transmitted to the wheelset axles through the gearboxes. Currently, when high-speed train wheelsets are being replaced in the temporary repair depot, the operators need to push the wheelset to the installation position, then lift the gearbox on the wheelset to a horizontal position, check whether the relative position of the gearbox hanger mounting hole and the gearbox hanger meets the requirements, and after adjusting it to meet the requirements, the wheelset is lifted to the installation position by the unloading machine, and the gearbox hanger is used to connect the gearbox to the bogie.

[0003] Application status and technical status: (1) The wheelset replacement operation requires the cooperation of multiple people. Due to the large size of the wheelset components and the limited space under the vehicle, it is inconvenient for operators to cooperate. (2) The wheelset rolls on the maintenance beam of the unloading machine. Although it is easy to move, the entire process of moving and adjusting its position is manually controlled by starting and stopping. It is difficult to accurately control the relative position of the wheelset and the vehicle bottom. Moreover, when adjusting the alignment position of the lifting gearbox, the operation is difficult and deviations are easy to occur. Multiple realignments are required, and the labor intensity of the operators is high. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide an auxiliary disassembly and assembly device for the maintenance of train wheelsets. The device is connected to the train wheelset as a whole by a clamping device and a clamping mechanism, so as to achieve the purpose of rapid attitude adjustment and precise alignment of the wheelset.

[0005] To achieve the above objectives, this utility model is specifically implemented through the following technical solution:

[0006] A wheelset maintenance auxiliary disassembly and assembly device for high-speed trains includes a crossbeam frame, two sets of traveling mechanisms, an electric drive mechanism, an adjusting rod mechanism, a clamping mechanism, a lifting mechanism, and a clamping mechanism. The two sets of traveling mechanisms are respectively installed at both ends of the crossbeam frame, with a clamping support plate fixedly installed at their outer ends. The electric drive mechanism is installed on the crossbeam frame and is connected to the traveling mechanisms via transmission. One end of the adjusting rod mechanism is fixedly connected to the clamping support plate, and the other end is connected to the clamping mechanism. The lifting mechanism is installed on the crossbeam frame and located between the two traveling mechanisms, and the clamping mechanism is movably installed on the top of the lifting mechanism.

[0007] Furthermore, the walking mechanism includes two walking wheels, which are rotatably mounted on two parallel shafts. The inner ends of the two walking wheels are connected to the electric drive mechanism via gears. The two shafts are fixedly connected to the crossbeam frame, and the clamp support plate is fixedly mounted on the outer ends of the two shafts.

[0008] Furthermore, the adjusting rod mechanism includes a first lead screw, a second lead screw, an adjusting long nut, and a locking nut. The two ends of the adjusting long nut are threadedly connected to one end of the first lead screw and the second lead screw, respectively. The other end of the first lead screw is connected to the clamp support plate, and the locking nut is threadedly connected to the other end of the second lead screw.

[0009] Furthermore, the adjusting rod mechanism is also equipped with an anti-loosening component, which includes an anti-loosening spring that abuts against both ends of the adjusting long nut and an anti-loosening nut that is threaded to the outer end of the anti-loosening spring.

[0010] Furthermore, the clamping mechanism includes a fixed clamp and a movable clamp. One end of the fixed clamp is connected to one end of the adjusting rod mechanism, and the other end is hinged to the movable clamp. The other end of the movable clamp is connected to the end of the adjusting rod mechanism and is fastened with a nut. The inner rings of the fixed clamp and the movable clamp are equipped with pulleys.

[0011] Furthermore, the lifting mechanism includes a lifting support and a scissor lifting assembly. The lifting support is mounted on the crossbeam frame, and the scissor lifting assembly is mounted on the top surface of the lifting support.

[0012] Furthermore, the scissor lifting assembly includes four sets of lifting rods that are sequentially hinged at their ends to form a diamond-shaped mechanism, and an adjusting screw is threadedly connected to the hinge points on both sides of the scissor lifting assembly.

[0013] Furthermore, the clamping mechanism includes a U-shaped bracket, a pad, and a fastening knob. The middle part of the U-shaped bracket is fixedly installed on the top of the lifting mechanism, the fastening knob is installed at both ends of the U-shaped bracket, and the pad is installed in the middle of the inner top surface of the U-shaped bracket.

[0014] This invention connects to the gearbox of the train wheelset via a lifting clamping mechanism and to the outer ends of the two wheel axles via a clamping mechanism, thus forming an integral part of the train wheelset. During movement, an electric drive mechanism propels the traveling mechanism to move along the maintenance beam, thereby causing the wheelset to move slowly as a whole. The mechanism is electrically controlled for start and stop, and manual operation allows for rapid adjustment and precise alignment of the wheelset's posture.

[0015] This utility model relates to an auxiliary disassembly and assembly device for EMU wheelset maintenance. It features a compact and small structure, making it easy to move. It enables auxiliary force adjustment and fine-tuning of wheelset posture, ensuring precise and quick alignment and improving installation efficiency. Its electric movement is flexible, saving manpower and reducing labor intensity. The electric drive mechanism can be equipped with a quick-removable battery for convenient charging. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram showing the installation state of the present invention and the wheelset.

[0018] In the diagram, 1-crossbeam frame; 2-traveling mechanism; 21-clamp support plate; 22-traveling wheel; 23-rotating shaft; 24-gear; 3-electric drive mechanism; 4-adjusting rod mechanism; 41-first lead screw; 42-second lead screw; 43-adjusting long nut; 44-locking nut; 45-anti-loosening component; 451-anti-loosening spring; 452-anti-loosening nut; 5-clamp mechanism; 51-fixed clamp; 52-movable clamp; 6-lifting mechanism; 61-lifting support; 62-scissor-type lifting component; 621-lifting rod; 7-clamping mechanism; 71-U-shaped bracket; 72-pad; 73-fastening knob. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0020] In the description of the embodiments of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this utility model. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0021] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0022] In this embodiment of the utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0024] like Figure 1 and Figure 2 As shown, this utility model discloses an auxiliary disassembly and assembly device for the maintenance of train wheelsets, comprising a crossbeam frame 1, two sets of traveling mechanisms 2, an electric drive mechanism 3, an adjusting rod mechanism 4, a clamping mechanism 5, a lifting mechanism 6, and a clamping mechanism 7. The two sets of traveling mechanisms 2 are respectively installed at both ends of the crossbeam frame 1, and a clamping support plate 21 is fixedly installed at their outer ends. The electric drive mechanism 3 is installed on the crossbeam frame 1 and is connected to the traveling mechanism 2 for transmission. One end of the adjusting rod mechanism 4 is fixedly connected to the clamping support plate 21, and the other end is connected to the clamping mechanism 5. The lifting mechanism 6 is installed on the crossbeam frame 1 and located between the two traveling mechanisms 2, and the clamping mechanism 7 is movably installed on the top of the lifting mechanism 6. The clamping mechanisms 5 at both ends are axially connected to the two ends of the wheelset axle. The lifting mechanism 6 is manually lifted to raise the clamping mechanism 7 to be connected and clamped to the gearbox of the wheelset. The electric drive mechanism 3 drives the walking mechanism 2 to rotate, which drives the crossbeam frame 1 to start and stop as a whole on the beam frame of the unloading machine on site. After being aligned with the train, the walking mechanism 2 is braked, and the wheelset is lifted as a whole by the maintenance unloading machine on site to assemble the wheelset with the train.

[0025] In some embodiments, each walking mechanism 2 includes two walking wheels 22, which are rotatably mounted on two parallel rotating shafts 23. The inner ends of the two walking wheels 22 are connected to the electric drive mechanism 3 via gears 24. The two rotating shafts 23 are fixedly connected to the crossbeam frame 1, and the clamp support plate 21 is fixedly mounted on the outer ends of the two rotating shafts 23. The arrangement of two walking wheels 22 on one side can prevent the crossbeam frame 1 from rolling along the rotating shaft of the walking wheel 22 when a single walking wheel 22 moves. The walking mechanism 2 is connected to a parking handle for parking to prevent the vehicle from rolling away. The parking status is detected by a sensor. If the vehicle is in the parking state, the forward and reverse functions are disabled, making the forward and reverse buttons ineffective.

[0026] In some embodiments, the adjusting rod mechanism 4 includes a first lead screw 41, a second lead screw 42, an adjusting long nut 43, and a locking nut 44. The two ends of the adjusting long nut 43 are threadedly connected to one end of the first lead screw 41 and the second lead screw 42, respectively. The adjusting long nut 43 is used to adjust the length of the adjusting rod mechanism, thereby adjusting the alignment and installation of the clamping mechanism 5 with the wheelset. The other end of the first lead screw 411 is connected to the clamping support plate 21 through a quick-lock pin. The locking nut 44 is threadedly connected to the other end of the second lead screw 42 and is used to fasten the clamping mechanism 5.

[0027] In a preferred embodiment, the adjusting rod mechanism 4 is further provided with an anti-loosening component 45. The anti-loosening component 45 includes an anti-loosening spring 451 that abuts against both ends of the adjusting long nut 43 and an anti-loosening nut 452 that is threadedly fixed to the outer end of the anti-loosening spring 451. The anti-loosening spring 451 and the anti-loosening nut 452 are both threadedly connected to the corresponding first lead screw 41 and second lead screw 42, and are used to tighten the adjusting long nut 43 with the first lead screw 41 and the second lead screw 42 at both ends. The anti-loosening nut 452 and the anti-loosening spring 451 are used to ensure the stability of the equipment during use and to prevent some key parts, especially the adjusting long nut 43, from loosening.

[0028] In a preferred embodiment, the clamping mechanism 5 includes a fixed clamp 51 and a movable clamp 52. One end of the fixed clamp 51 is connected to one end of the adjusting rod mechanism 41, and the other end is hinged to the movable clamp 52. The other end of the movable clamp 52 is connected to the end of the adjusting rod mechanism 41 and fastened with a nut. The inner rings of the fixed clamp 51 and the movable clamp 52 are provided with pulleys 53, and the clamping mechanism 5 is axially rotatably connected to the wheelset axle.

[0029] The movable hoop 52 and the fixed hoop 51 work together to hold the wheel axle and allow it to rotate flexibly; the locking nut 44 works with a fixed nut to clamp the movable hoop 52 and adjust its position, so that the hoop mechanism 5 can hold the wheel axle and rotate flexibly.

[0030] In some embodiments, the lifting mechanism 6 includes a lifting support 61 and a scissor lifting assembly 62. The lifting support 61 is mounted on the crossbeam frame 1, and the scissor lifting assembly 62 is mounted on the top surface of the lifting support 61. The scissor lifting assembly 62 is modified from a vehicle scissor jack. The lifting support 61 is fitted onto the crossbeam frame 1 and can slide axially along the crossbeam frame 1. The top of the scissor lifting assembly 62 is hinged to the clamping mechanism 7. The clamping mechanism 7 can rotate 360° horizontally around the hinge point to adapt to the support points of different gearboxes.

[0031] Preferably, the scissor lifting assembly 62 includes four sets of lifting rods 621 that are sequentially hinged at their ends to form a rhombus mechanism. An adjusting screw is threadedly connected to the hinge points on both sides of the scissor lifting assembly 62. By turning the adjusting screw, the shape of the rhombus mechanism can be adjusted to realize the lifting and lowering of the scissor lifting assembly 62 for storage.

[0032] In some embodiments, the clamping mechanism 7 includes a U-shaped bracket 71, a pad 72, and a fastening knob 73. The middle part of the U-shaped bracket 71 is fixedly mounted on the top of the lifting mechanism 6, the fastening knob 73 is mounted at both ends of the U-shaped bracket 71, and the pad 72 is mounted in the middle of the inner top surface of the U-shaped bracket 71. The pad 72 supports the gearbox of the wheelset. By rotating the fastening knob 73 of the clamping mechanism, a polyurethane block is installed on the inner side of the fastening knob 73, which clamps the gearbox. Together with the pad 72, the gearbox is fixedly clamped to adjust and fix the gearbox's posture and transmit force to achieve the movement of the wheelset.

[0033] This utility model uses a crossbeam frame 1 and four traveling wheels 22 at both ends to support the overall structure, which also serves as the support for the lifting mechanism 6. The clamping mechanism 7 above the lifting mechanism 6 clamps the gearbox and transmits force, and the rolling of the traveling wheels 22 enables the movement of the wheelset. There are clamping mechanisms 5 on both sides to help maintain the parallel posture of the tooling axis and the wheelset axis during movement.

[0034] The equipment is equipped with an electric drive mechanism 3, which drives the walking wheels 22 to move back and forth through an electrical control system. It has a control panel with a battery that can be quickly replaced, a power display, a main switch, and forward and reverse buttons. The equipment is also equipped with a remote control, which can remotely control the car to move forward and backward. The remote control uses the 315MHz band and has excellent penetration and anti-interference capabilities.

[0035] The specific embodiments described herein are merely illustrative of the invention and are not intended to limit it. Those skilled in the art can make modifications to these embodiments without contributing any inventive step after reading this specification, but such modifications are protected by patent law as long as they fall within the scope of the claims of this invention.

Claims

1. A wheelset maintenance auxiliary disassembly and assembly device for high-speed trains, characterized in that, It includes a crossbeam frame (1), two sets of traveling mechanisms (2), an electric drive mechanism (3), an adjusting rod mechanism (4), a clamping mechanism (5), a lifting mechanism (6), and a clamping mechanism (7). The two sets of traveling mechanisms are respectively installed at both ends of the crossbeam frame, and a clamping support plate (21) is fixedly installed at their outer ends. The electric drive mechanism is installed on the crossbeam frame and is connected to the traveling mechanism for transmission. One end of the adjusting rod mechanism is fixedly connected to the clamping support plate, and the other end is connected to the clamping mechanism. The lifting mechanism is installed on the crossbeam frame and located between the two traveling mechanisms. The clamping mechanism is movably installed on the top of the lifting mechanism.

2. The auxiliary disassembly and assembly device for EMU wheelset maintenance according to claim 1, characterized in that, The walking mechanism includes two walking wheels (22), which are rotatably mounted on two parallel shafts (23). The inner ends of the two walking wheels are connected to the electric drive mechanism via gears (24). The two shafts are fixedly connected to the crossbeam frame, and the clamp support plate is fixedly mounted on the outer ends of the two shafts.

3. The auxiliary disassembly and assembly device for EMU wheelset maintenance according to claim 1, characterized in that, The adjusting rod mechanism includes a first lead screw (41), a second lead screw (42), an adjusting long nut (43), and a locking nut (44). The two ends of the adjusting long nut are threaded to one end of the first lead screw and the second lead screw, respectively. The other end of the first lead screw is connected to the clamp support plate, and the locking nut is threaded to the other end of the second lead screw.

4. The auxiliary disassembly and assembly device for EMU wheelset maintenance according to claim 3, characterized in that, The adjusting rod mechanism is also provided with an anti-loosening component (45), which includes an anti-loosening spring (451) abutting against both ends of the adjusting long nut and an anti-loosening nut (452) threaded to the outer end of the anti-loosening spring.

5. The auxiliary disassembly and assembly device for EMU wheelset maintenance according to claim 1, characterized in that, The clamping mechanism includes a fixed clamp (51) and a movable clamp (52). One end of the fixed clamp is connected to one end of the adjusting rod mechanism, and the other end is hinged to the movable clamp. The other end of the movable clamp is connected to the end of the adjusting rod mechanism and is fastened with a nut. The inner rings of the fixed clamp and the movable clamp are equipped with pulleys (53).

6. The auxiliary disassembly and assembly device for EMU wheelset maintenance according to claim 1, characterized in that, The lifting mechanism includes a lifting support (61) and a scissor lifting assembly (62). The lifting support is installed on the crossbeam frame, and the scissor lifting assembly is installed on the top surface of the lifting support.

7. The auxiliary disassembly and assembly device for EMU wheelset maintenance according to claim 6, characterized in that, The scissor lifting assembly includes four sets of lifting rods (621) with their ends hinged in sequence to form a rhomboid structure. An adjusting screw is threadedly connected to the hinge on both sides of the scissor lifting assembly.

8. The auxiliary disassembly and assembly device for EMU wheelset maintenance according to claim 1, characterized in that, The clamping mechanism includes a U-shaped bracket (71), a pad (72), and a fastening knob (73). The middle part of the U-shaped bracket is fixedly installed on the top of the lifting mechanism, the fastening knob is installed at both ends of the U-shaped bracket, and the pad is installed in the middle of the inner top surface of the U-shaped bracket.

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