Electric expansion wheel device and vehicle transfer platform

Abstract

The utility model relates to the technical field of track unloading, and proposes an electric expander device and a car transfer platform, including a connecting frame, a brake rail, a driving motor and a linkage assembly. The number of the brake rails is two, and both are arranged on the connecting frame. The two brake rails are parallel to each other and can move toward each other; the driving motor is fixed on the connecting frame; the linkage assembly is arranged on the connecting frame, and the linkage assembly includes two movable ends, and the two movable ends are respectively fixed to the two brake rails, and the driving motor is connected to the two brake rails through the linkage assembly. The electric expander device and the car transfer platform are provided with a driving motor and a linkage assembly, and the linkage assembly is driven by the driving motor, and then the reverse synchronous action of the two brake rails is promoted to realize the electric expander operation of the two brake rails, so as to avoid the problems of high noise, high temperature, and difficult pressure regulation in the operation of the hydraulic system, and at the same time, the maintenance frequency can be reduced and the stability of the expander can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of track unloading, in particular to an electric expansion wheel device and a vehicle transfer platform. Background Art

[0002] A car mover is a railway facility mainly used to move vehicles within a railway marshaling yard or locomotive depot. It usually consists of a platform and a drive system, and can move horizontally to transfer vehicles from one track to another through the track network. The design of the car mover takes efficiency and safety into consideration, and can quickly and accurately position vehicles to designated locations, effectively reducing vehicle dispatch time and improving the operating efficiency of the marshaling yard. In the tipping system, the car mover is mainly used to transfer empty or fully loaded open cars, such as sending fully loaded vehicles to the tipping machine foundation, or moving empty cars out of the tipping machine.

[0003] In the car tipping machine system, the car transfer platform travel mechanism is driven by a pin gear transmission method and is equipped with a wheel expander, etc. Among them, the wheel expander is used to fix the vehicle when the car transfer platform moves; the pin device is used to position and align with the heavy and empty vehicle line to prevent the lateral force when the empty vehicle is pushed in or out from causing the car transfer platform to move and miss the heavy and empty vehicle line. The wheel expanders of conventional car transfer platforms all adopt a hydraulic design. For example, the multifunctional single-car tipping machine with three-car transfer platform with publication number CN201863866U has two oil distribution lines and one oil pump to drive two oil cylinders to lock the wheels. However, the hydraulic system has always had problems such as high noise, high temperature, and difficult pressure regulation during operation, and the equipment has a high maintenance frequency and poor working stability. Utility Model Content

[0004] In view of this, the utility model proposes an electric expander device and a car transfer platform, which realize the electric expander action of two brake rails by setting a driving motor and a linkage component, so as to avoid a series of problems caused by the use of hydraulic expanders.

[0005] The technical solution of the utility model is achieved in this way:

[0006] On the one hand, the utility model provides an electric expander device, including a connecting frame, a brake rail, a drive motor and a linkage assembly, wherein:

[0007] There are two brake rails, both of which are arranged on the connecting frame, and the two brake rails are parallel to each other and can move toward each other;

[0008] The driving motor is fixed on the connecting frame;

[0009] The linkage assembly is arranged on the connecting frame, and the linkage assembly includes two movable ends, and the two movable ends are respectively fixed to the two brake rails. The driving motor is transmission-connected with the two brake rails through the linkage assembly to drive the two brake rails to move synchronously.

[0010] On the basis of the above technical solution, preferably, the linkage assembly includes a movable rod and two connecting rods, wherein:

[0011] The movable rod is slidably arranged on the connecting frame and is drivingly connected to the output end of the driving motor;

[0012] The two connecting rods are both hinged on the movable rod, and one end of the two connecting rods away from the movable rod is respectively transmission-connected with the two brake rails.

[0013] On the basis of the above technical solution, preferably, the number of the linkage components is two, and each is connected to two brake rails.

[0014] Further preferably, it also includes a reducer, which is fixed on the connecting frame, and has an input end and two output ends. The output end of the drive motor is transmission-connected to the input end of the reducer, and the two output ends of the reducer are transmission-connected to two linkage components respectively.

[0015] Further preferably, it further comprises a transmission assembly, wherein the drive motor and the movable rod are connected to each other through the transmission assembly, and the transmission assembly is used to convert the rotational motion of the output end of the drive motor into the linear motion of the movable rod.

[0016] More preferably, the transmission assembly includes a screw nut and a transmission screw, wherein:

[0017] The screw nut is drivingly connected to the output end of the driving motor;

[0018] One end of the transmission screw is fixed to the movable rod, and the other end is threadedly connected to the screw nut, so that the screw nut can push the transmission screw to move along the length direction of the brake rail through rotation.

[0019] On the basis of the above technical solution, preferably, it further comprises an elastic member, wherein the elastic member is arranged on one of the movable ends of the linkage assembly, and the movable end is connected to the brake rail via the elastic member.

[0020] On the other hand, the utility model provides a vehicle transfer platform, including a vehicle body, a track and the above-mentioned electric expander device, wherein the electric expander device and the track are both arranged on the vehicle body, so that the wheels are fixed by the cooperation of the electric expander device and the track.

[0021] On the basis of the above technical solution, preferably, it also includes a latch device, which is arranged on the vehicle body and is used to position the vehicle body so that the track can be docked with the ground rail.

[0022] Further preferably, the latch device comprises a slide seat, a plug plate and an electro-hydraulic push rod, wherein:

[0023] The slide is fixed on the vehicle body;

[0024] The plug plate is slidably arranged in the slide seat, and the plug plate is used to be inserted into the ground foundation to position the vehicle body;

[0025] The electro-hydraulic push rod is arranged on the vehicle body, and the output end of the electro-hydraulic push rod is transmission-connected with the plug board.

[0026] Compared with the prior art, the electric expander device and the vehicle transfer platform of the utility model have the following beneficial effects:

[0027] (1) By setting a driving motor and a linkage assembly, the driving motor drives the linkage assembly, thereby promoting the reverse synchronous action of the two brake rails, so as to realize the electric expansion operation of the two brake rails, thereby avoiding the problems of high noise, high temperature, and difficult pressure regulation in the operation of the hydraulic system, and at the same time reducing the maintenance frequency and improving the stability of the expansion wheel;

[0028] (2) An elastic member is provided so that one of the two brake rails is rigidly clamped with the wheel on one side, and the other brake rail is flexibly clamped with the wheel on the other side, thereby avoiding the situation where one side clamps the wheel while the other side cannot stably clamp the wheel due to errors or other factors, thereby improving the stability of the wheel expansion operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0030] Figure 1 It is a three-dimensional diagram of the electric expander device and the vehicle transfer platform of the utility model;

[0031] Figure 2 It is a partial cross-sectional view of the vehicle transfer platform of the utility model;

[0032] Figure 3 It is a partial side view of the vehicle transfer platform of the utility model;

[0033] Figure 4 It is a schematic diagram of the latch device of the vehicle transfer platform of the present utility model. DETAILED DESCRIPTION

[0034] The following will be combined with the implementation of the utility model to clearly and completely describe the technical solutions in the implementation of the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0035] like Figure 1-2 As shown, the electric expander device of the utility model comprises a connecting frame 1, a brake rail 2, a driving motor 3 and a linkage assembly 4.

[0036] The connecting frame 1 is a steel structure as a whole and is arranged in an H shape, specifically including a crossbeam and two support arms.

[0037] There are two brake rails 2, and both are arranged on the connecting frame 1. The two brake rails 2 are parallel to each other and to the crossbeam on the connecting frame 1. The two brake rails 2 are vertically staggered with the two support arms to form a tic-tac-toe shape. The brake rails 2 can move toward each other, specifically including approaching and moving away from each other. When the two brake rails 2 are approaching each other, they are away from the wheels. When the two brake rails 2 are away from each other, the wheels are tightened. The brake rail 2 is a long I-rail as a whole, and the parts close to the wheels at both ends are chamfered. The two brake rails 2 can move away from each other on the connecting frame 1 to squeeze the wheels of the rail vehicle, thereby relatively fixing the rail vehicle and the transfer platform.

[0038] The driving motor 3 is fixed on the connecting frame 1, and can directly drive the two brake rails 2 to perform synchronous action through the driving motor 3, so as to realize the opposite or relative movement of the two brake rails 2, thereby avoiding the problems existing in the prior art of driving by oil cylinder.

[0039] The linkage assembly 4 is arranged on the connecting frame 1, and the linkage assembly 4 includes two movable ends, and the two movable ends are respectively fixed to the two brake rails 2. The driving motor 3 is transmission-connected with the two brake rails 2 through the linkage assembly 4 to drive the two brake rails 2 to move synchronously.

[0040] In this embodiment, the two movable ends of the linkage assembly 4 are slidably set on one of the support arms of the connecting frame 1, so that the movable end of the linkage assembly 4 can only move along the support arm, thereby driving the two brake rails 2 to move in the length direction of the support arm. It should be noted that the movement mentioned here only refers to the movement of the brake rail 2 projected on the plane where the two support arms are located.

[0041] In this embodiment, the linkage assembly 4 includes a movable rod 41 and two connecting rods 42. The movable rod 41 is slidably set on the connecting frame 1 and is transmission connected to the output end of the driving motor 3. The two connecting rods 42 are hinged on the movable rod 41, and the ends of the two connecting rods 42 away from the movable rod 41 are respectively transmission connected to the two brake rails 2. The movable rod 41 is parallel to the crossbeam of the connecting frame 1, and the two connecting rods 42 are arranged in a herringbone shape, so that when the movable rod 41 slides horizontally, it can drive the two connecting rods 42 away from the ends of the movable rod 41 to move in opposite directions, thereby realizing the two brake rails 2 approaching or moving away from each other.

[0042] In this embodiment, the number of the linkage components 4 is two, and each is connected to two brake rails 2. The two linkage components 4 are symmetrically arranged on both sides of the drive motor 3 on the crossbeam of the connecting frame 1. By setting up two linkage components 4, the stability of the brake rail 2 during the activity can be improved, and the force on the brake rail 2 during the expansion process can be balanced. Correspondingly, the linkage components 4 can also be set to three, four or other multiple numbers. For a longer brake rail 2, setting up multiple linkage components 4 can ensure the stability of the brake rail 2 during expansion.

[0043] In this embodiment, a reducer 5 is also provided, and the reducer 5 is fixed on the connecting frame 1. The reducer 5 has an input end and two output ends. The output end of the drive motor 3 is transmission-connected to the input end of the reducer 5, and the two output ends of the reducer 5 are transmission-connected to the two linkage components 4 respectively. The high speed of the drive motor 3 can be converted into a large torque by the provided reducer 5, thereby driving the two linkage components 4 to perform synchronous action to avoid insufficient tightening torque caused by direct drive of the drive motor 3. At the same time, the single output of the drive motor 3 can be divided into two power outputs by the reducer 5 to drive two or more linkage components 4 to perform action, so as to realize the synchronous movement of the two brake rails 2.

[0044] As a preferred embodiment, a transmission assembly 6 is further provided, and the drive motor 3 is connected to the movable rod 41 through the transmission assembly 6 , and the transmission assembly 6 is used to convert the rotational motion of the output end of the drive motor 3 into the linear motion of the movable rod 41 .

[0045] Specifically, the output power of the reducer 5 is a rotational drive, and the transmission assembly 6 set up can convert the power of the driving motor 3 after the torque conversion of the reducer 5 into a linear drive. The two output ends of the reducer 5 are respectively connected to the two linkage assemblies 4 through two transmission assemblies 6. Like the two linkage assemblies 4, the two transmission assemblies 6 are also stacked and arranged on both sides of the reducer 5.

[0046] The transmission assembly 6 includes a screw nut 61 and a transmission screw 62. The screw nut 61 is transmission-connected to the output end of the drive motor 3. One end of the transmission screw 62 is fixed to the movable rod 41, and the other end is threadedly connected to the screw nut 61, so that the screw nut 61 can push the transmission screw 62 to move along the length direction of the brake rail 2 by rotating.

[0047] Specifically, the screw nuts 61 in the two transmission assemblies 6 are respectively fixed to the two output ends of the reducer 5 and are coaxial, but the internal thread spiral directions are opposite, so that when the two screw nuts 61 rotate in the same direction, the two transmission screws 62 move linearly in opposite directions, and the linearly moving transmission screw 62 can push the movable rod 41 to move horizontally.

[0048] As a preferred embodiment, it also includes an elastic member 7, which is arranged on one of the movable ends of the linkage assembly 4, and the movable end is connected to the brake rail 2 through the elastic member 7. The elastic member 7 is arranged so that one of the two brake rails 2 can be in elastic contact with the wheel, thereby avoiding the situation where one side clamps the wheel while the other side cannot stably clamp the wheel due to errors or other factors.

[0049] Specifically, on a single linkage assembly 4, the number of elastic members 7 is set to two to balance the pressure applied by the elastic members 7 to the brake rail 2 and, at the same time, improve the clamping performance of the corresponding brake rail 2. The elastic member 7 is preferably a spring.

[0050] It should be noted that a connecting seat is also provided for the connection between the linkage assembly 4 and the two brake rails 2. The connecting seat is hinged on the support arm of the connecting frame 1 through two rocker arms. The brake rails 2 are fixed on the connecting seat so that the connecting seat is always parallel to the support arm. The connecting seat is transmission-connected to the movable end of the linkage assembly 4 so that the linkage assembly 4 can sink or rise relative to the ground in addition to moving toward or away from the wheel during the process of pushing the brake rails 2. Specifically, when the brake rails 2 perform the wheel expansion action, the brake rails 2 rise relative to the ground. Conversely, when the brake rails 2 leave the wheels, they sink relative to the ground. The rising and sinking actions are both performed by the rocker arms.

[0051] like Figure 2-4 As shown, the vehicle transfer platform of the present invention comprises a vehicle body 10, a track 20 and the above-mentioned electric expander device, wherein the electric expander device and the track 20 are both arranged on the vehicle body 10, so that the wheels are fixed by the cooperation of the electric expander device and the track 20.

[0052] The length of the car body 10 is greater than the length of the rail vehicle to be moved, and the rail vehicle includes an open car and a container car.

[0053] There are two tracks 20, both of which are fixed on the vehicle body 10. The two tracks 20 are parallel to each other and are located on opposite sides of the two brake rails 2. During use, the rail vehicle moves onto the vehicle body 10, and the wheels of the vehicle will all be located on the two tracks 20. At this time, the electric wheel expansion device can be used to relatively fix the vehicle wheels and the vehicle body 10 to prevent the vehicle from moving on the tracks 20.

[0054] In this embodiment, a latch device 30 is further included. The latch device 30 is disposed on the vehicle body 10 and is used to position the vehicle body 10 so that the track 20 is docked with the ground rail.

[0055] Specifically, in the tipping machine system, rails will be set on the ground foundation and docked with the two tracks 20. Before docking, it is necessary to use a latch device 30 to relatively fix the car body 10 and the ground foundation, and dock the track 20 with the ground rail, so that a fully loaded car or an empty car can be moved onto the car body 10. It should be noted that a positioning groove for inserting the latch device 30 also needs to be set on the ground foundation.

[0056] Correspondingly, in order to avoid using a hydraulic system on the vehicle transfer platform, the latch device 30 includes a slide 31, a plug plate 32 and an electro-hydraulic push rod 33. The slide 31 is fixed on the vehicle body 10, and the plug plate 32 is slidably arranged in the slide 31. The plug plate 32 is used to be inserted into the ground foundation to position the vehicle body 10. The electro-hydraulic push rod 33 is arranged on the vehicle body 10, and the output end of the electro-hydraulic push rod 33 is transmission-connected to the plug plate 32.

[0057] The plug plate 32 is pushed to move on the slide 31 by the electro-hydraulic push rod 33, so that it can be inserted into or leave the positioning groove of the ground foundation. The slide 31 mainly plays the role of bearing and limiting the plug plate 32. In addition, two chamfers are set on one end of the plug plate 32 inserted into the positioning groove. The two chamfers can make the plug plate 32 inserted into the positioning groove more quickly to position the vehicle body 10.

[0058] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric expander device, characterized in that: It comprises a connecting frame (1), a brake rail (2), a driving motor (3) and a linkage assembly (4), wherein: There are two brake rails (2), both of which are arranged on the connecting frame (1); the two brake rails (2) are parallel to each other and can move towards each other; The driving motor (3) is fixed on the connecting frame (1); The linkage assembly (4) is arranged on the connecting frame (1), the linkage assembly (4) comprises two movable ends, and the two movable ends are respectively fixed to the two brake rails (2), and the drive motor (3) is transmission-connected to the two brake rails (2) through the linkage assembly (4) to drive the two brake rails (2) to move synchronously.

2. The electric expander device according to claim 1, characterized in that: The linkage assembly (4) comprises a movable rod (41) and two connecting rods (42), wherein: The movable rod (41) is slidably disposed on the connecting frame (1) and is drivingly connected to the output end of the driving motor (3); The two connecting rods (42) are both hinged on the movable rod (41), and one end of the two connecting rods (42) away from the movable rod (41) is respectively transmission-connected to the two brake rails (2).

3. The electric expander device according to claim 1, characterized in that: The number of the linkage components (4) is two, and each is connected to two brake rails (2).

4. The electric expander device according to claim 3, characterized in that: The invention also comprises a reducer (5), wherein the reducer (5) is fixed on the connecting frame (1), and the reducer (5) has an input end and two output ends, the output end of the driving motor (3) is drivingly connected to the input end of the reducer (5), and the two output ends of the reducer (5) are drivingly connected to the two linkage components (4) respectively.

5. The electric expander device according to claim 2, characterized in that: It also includes a transmission assembly (6), the drive motor (3) and the movable rod (41) are connected to each other through the transmission assembly (6), and the transmission assembly (6) is used to convert the rotational motion of the output end of the drive motor (3) into the linear motion of the movable rod (41).

6. The electric expander device according to claim 5, characterized in that: The transmission assembly (6) comprises a screw nut (61) and a transmission screw (62), wherein: The screw nut (61) is drivingly connected to the output end of the drive motor (3); One end of the transmission screw rod (62) is fixed to the movable rod (41), and the other end is threadedly connected to the screw rod nut (61), so that the screw rod nut (61) can push the transmission screw rod (62) to move along the length direction of the brake rail (2) by rotating.

7. The electric expander device according to claim 1, characterized in that: It also comprises an elastic member (7), wherein the elastic member (7) is arranged on one of the movable ends of the linkage assembly (4), and the movable end is connected to the brake rail (2) via the elastic member (7).

8. A vehicle transfer platform, characterized in that: The invention comprises a vehicle body (10), a track (20) and an electric expander device according to any one of claims 1 to 7, wherein the electric expander device and the track (20) are both arranged on the vehicle body (10) so as to fix the wheel by cooperating with the electric expander device and the track (20).

9. The vehicle transfer platform according to claim 8, characterized in that: It also comprises a latch device (30), which is arranged on the vehicle body (10) and is used to position the vehicle body (10) so that the track (20) can be docked with the ground rail.

10. The vehicle transfer platform according to claim 9, characterized in that: The latch device (30) comprises a slide seat (31), a latch plate (32) and an electro-hydraulic push rod (33), wherein: The slide seat (31) is fixed on the vehicle body (10); The inserting plate (32) is slidably arranged in the sliding seat (31), and the inserting plate (32) is used to be inserted into the ground foundation to position the vehicle body (10); The electro-hydraulic push rod (33) is arranged on the vehicle body (10), and the output end of the electro-hydraulic push rod (33) is transmission-connected with the plug board (32).

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