A pit type fixing frame car machine

Abstract

A pit type fixed frame car machine, including vehicle frame lifting mechanism, vehicle body bracket, main body frame, the vehicle frame lifting mechanism includes support, lifting column, concave lifting beam, guide device, lifting screw, lifting device, the vehicle body bracket includes support, lifting column, guide device, lifting screw, speed reducer motor, the vehicle body bracket has two, symmetry is established in the main body frame, the main body frame includes auxiliary rail, bearing chassis, fixed cover plate, cover plate support, follow-up cover plate device, the follow-up cover plate device includes follow-up cover plate and nitrogen spring lifting device, the nitrogen spring lifting device is arranged on the mounting bracket arranged in the vehicle frame lifting mechanism, and the nitrogen spring lifting device is connected with the follow-up cover plate.The utility model has the advantages of scientific structure, good practicality, can effectively complete the whole train (6 vehicles) or a unit (3 vehicles) or single section car or arbitrary marshalling vehicle's frame car safety maintenance operation, and the degree of mechanization is high.

Description

Technical Field

[0001] This utility model relates to a piece of equipment for rail transit, specifically a pit-type fixed-frame vehicle machine. When not in operation, the machine is concealed within a pit. Background Technology

[0002] As for how to complete the safety inspection and maintenance of an entire train (6 cars), a unit (3 cars), a single car, or any combination of cars, there is reportedly no ideal technical solution so far. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this utility model provides a pit-type fixed car-lifting machine. It has a scientific structure, good practicality, and can effectively complete the safety inspection and maintenance of a whole train (6 cars), a unit (3 cars), a single car, or any combination of cars.

[0004] To achieve the above objectives, the technical solution of this utility model is a pit-type fixed vehicle lifting machine, comprising a vehicle lifting mechanism, a vehicle body bracket, and a main frame, characterized in that: the main frame is provided with a vehicle body bracket and a vehicle lifting mechanism.

[0005] The vehicle lifting mechanism includes a bracket, lifting columns, concave lifting beams, a guide device, lifting screws, and a lifting device. It is a four-legged mechanism with four lifting columns as the legs. The lifting columns are equipped with brackets, and the guide device is located on the side of the brackets. The four legs and the brackets are connected to the lifting screws, and the lifting screws are connected to the lifting device. Corresponding concave lifting beams are provided above the four lifting columns.

[0006] The vehicle body bracket includes a bracket, a lifting column, a guide device, a lifting screw, and a reduction motor. There are two vehicle body brackets, symmetrically arranged in the main frame. Each bracket has a lifting column, a bracket on the lifting column, a support platform on the top of the lifting column, and a guide device on the side of the bracket. The lifting column and the bracket are connected to the lifting screw, and the lifting screw is connected to the reduction motor.

[0007] The main frame includes an auxiliary track, a supporting chassis, a fixed cover plate, a cover plate bracket, and a following cover plate device. The auxiliary track is set corresponding to the workshop track, and a reliable alignment mechanism - a wheel positioning detection mechanism - is provided on the inner side of the auxiliary track. The fixed cover plate is set on the cover plate bracket, and the fixed cover plate has an opening for the concave lifting beam and the vehicle body bracket to lift and lower. The supporting chassis is set under the cover plate bracket. The following cover plate device includes a following cover plate and a nitrogen spring lifting device. The nitrogen spring lifting device is set on the mounting frame inside the vehicle lifting mechanism, and the following cover plate is connected to the nitrogen spring lifting device.

[0008] The lifting device consists of a motor connected to a steering box and a bogie, and the bogie is connected to a reducer mounted on the four corners of the support.

[0009] The beneficial effects of this utility model are that it has a scientific structure, good practicality, and can effectively complete the safety inspection and maintenance of the entire train (6 cars), a unit (3 cars), a single car, or any combination of cars, with a high degree of mechanization. Attached Figure Description

[0010] Figure 1 This is a perspective view of the utility model.

[0011] Figure 2 This is a perspective view of the present invention without a fixed cover plate.

[0012] Figure 3 This is a three-dimensional view of the vehicle frame mechanism of this utility model.

[0013] Figure 4 This is a three-dimensional view of the vehicle body bracket of this utility model.

[0014] Figure 5 This is a three-dimensional view of the main frame of this utility model.

[0015] Figure 6 This is a diagram showing the installation position of the cover plate device of this utility model.

[0016] Figure 7-10 This is a diagram illustrating the working process of this utility model.

[0017] In the picture:

[0018] 100 A type of pit-type fixed frame vehicle machine;

[0019] 1. Vehicle lifting mechanism, 11. Support bracket, 12. Lifting column, 13. Concave lifting beam, 14. Guide device, 15. Lifting screw, 16. Lifting device, 161. Motor, 162. Steering box, 163. Bogie, 164. Reducer;

[0020] 2. Car body bracket; 21. Gear motor; 22. Support platform;

[0021] 3 Main frame, 30 Auxiliary rail, 31 Wheel positioning detection mechanism, 32 Bearing chassis, 33 Fixed cover plate, 34 Cover plate bracket; 35 Following cover plate device, 351 Following cover plate, 352 Nitrogen spring lifting device, 353 Mounting frame;

[0022] 4 train cars. Detailed Implementation

[0023] The embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] like Figures 1 to 10As shown, this utility model discloses a pit-type fixed vehicle support machine 100, which includes a vehicle support mechanism 1, a vehicle body bracket 2, and a main frame 3. The main frame is provided with a vehicle body bracket and a vehicle support mechanism.

[0025] The vehicle lifting mechanism 1 includes a support frame 11, lifting columns 12, concave lifting beams 13, a guide device 14, lifting screws 15, and a lifting device 16. It is a four-legged mechanism with lifting columns as the four legs. Support frames are mounted on the lifting columns, and the guide device 14 is located beside the support frames. The four legs and the support frames are connected to the lifting screws, which in turn are connected to the lifting device. Corresponding concave lifting beams are located above the four lifting columns. The vehicle lifting mechanism lifts the vehicle (with bogie) to any height and can maintain a locked state. After the lifting and lowering operation is completed, all equipment except the main control console is lowered into the pit, leaving the garage floor flat and unobstructed, allowing unimpeded passage for personnel and vehicles.

[0026] In addition to automatic control, both the vehicle lifting mechanism and the body bracket can be switched to manual control. With authorization from the main control console, the operator can select and operate individual lifting devices for installation, maintenance, and commissioning. Under authorization from the main control console, the main control console can pre-select and manually operate the body lifting mechanism and the bogie lifting mechanism.

[0027] The vehicle body bracket 2 includes a bracket 11, a lifting column 12, a guide device 14, a lifting screw 15, and a reduction motor 21. There are two vehicle body brackets, symmetrically arranged in the main frame. Each bracket has a lifting column with a bracket on it and a support platform 22 on top. The guide device is located next to the bracket. The lifting column and bracket are connected to the lifting screw, which is connected to the reduction motor. The vehicle body bracket has the same structural components as the vehicle mounting mechanism.

[0028] The main frame 3 includes an auxiliary rail 30, a supporting chassis 32, a fixed cover plate 33, and a cover plate bracket 34. The auxiliary rail is correspondingly set with the workshop rail, and a reliable alignment mechanism—a wheel positioning detection mechanism 31—is provided on the inner side of the auxiliary rail. The fixed cover plate is set on the cover plate bracket and has an opening for the concave lifting beam and the vehicle body bracket to be raised and lowered. The supporting chassis is set under the cover plate bracket. The following cover plate device 35 includes a following cover plate 351 and a nitrogen spring lifting device 352. The nitrogen spring lifting device is set on the mounting frame 353 inside the vehicle lifting mechanism, and the following cover plate is connected to the nitrogen spring lifting device. When the fixed vehicle lifting machine is operating, the brackets of each lifting unit are raised synchronously from underground. At the same time, the following cover plate is automatically raised by the nitrogen spring lifting mechanism and kept flush with the ground, thereby ensuring the flatness of the ground for convenient maintenance operations. The fixed cover plate 33 is installed on the pit opening when the machine is installed.

[0029] The lifting device 16 consists of a motor 161 connected to a steering box 162 and a bogie 163, and the bogie is connected to a lifting screw connected to a reducer 164 mounted on the four corners of the support.

[0030] The lower part is provided with a nut safety device, which consists of a working nut and an anti-fall nut connected in series at the lower part of the lead screw, and limit switches are provided on the working nut and the anti-fall nut respectively.

[0031] The lifting screw is equipped with a screw protection device, that is, the screw used adopts a trapezoidal thread with self-locking capability.

[0032] This machine is equipped with an electrical control system, a ventilation system, and a drainage system;

[0033] The working process of this utility model is as follows:

[0034] Because of the vehicle lifting operations, there is no overhead contact line inside the depot; train alignment is completed using shunting locomotives or dual-purpose road-rail vehicles. Figure 7 As shown, pull the train to the lifting platform and align it correctly;

[0035] The lifting machine raises the vehicle (with bogies) to a set height, such as... Figure 8 As shown;

[0036] Disconnect the bogie from the car body; raise the car body support bracket to support the car body, as follows. Figure 9 As shown;

[0037] The vehicle's lifting mechanism and bogies are lowered together, and the bogies are extended, as if... Figure 10 As shown;

[0038] The process of lowering the vehicle is the reverse of the process of lifting the vehicle; after the lifting and lowering operation is completed, the machine is completely retracted into the pit, and the garage floor is flat and unobstructed.

[0039] This machine has the following features:

[0040] 1. Whether the vehicle is supported by the lifting mechanism (with the bogies not lowered) or by the car body bracket (with the bogies lowered), maintenance work on the vehicle is safe.

[0041] 2. Under conditions where long-term (at least 7 days) train maintenance operations are carried out in the overall or car body mounting state, the equipment can ensure that it will not endanger the safety of the train and the personnel, and will not cause damage to the equipment.

[0042] 3. The equipment has the ability to simultaneously erect an entire train set without requiring any prior disassembly or assembly work.

[0043] 4. The equipment's structure allows maintenance personnel to replace a single bogie without needing to disassemble or reassemble other bogies.

[0044] 5. The structure of the car body bracket fully considers the needs of launching the bogie from under the car and other operations, providing a large working space.

[0045] 6. As the bogie is raised, a covering mechanism automatically covers any dents left after the bogie is raised. The covering mechanism is flush with the ground and can support the workers, ensuring their safety and facilitating the operation when the bogie is pushed out.

[0046] 7. The structural form of the car body bracket and the car-mounting device meets the requirement of being able to launch any bogie in any order.

[0047] 8. The structure of the car-lifting machine's foundation pit is simple and the civil engineering cost is low. Each set of car-lifting devices (lifting 1 car) has 2 foundation pits (corresponding to 2 bogies). There are no partition walls inside the foundation pit, ensuring sufficient space for installation, inspection and maintenance.

[0048] 9. The pit cover plate can withstand the weight of a fully loaded forklift (including its own weight) of 3000kg when it travels on the covered surface.

[0049] 10. A safety net shall be installed inside the pit for maintenance operations. Sufficient maintenance space and access shall be reserved.

[0050] 11. Each boom has a lifting height indicator that is easily visible to the operator.

[0051] 12. Quality inspection reports are provided for the materials and processing techniques of important components (such as vehicle body brackets, vehicle mounting devices, etc.) and are submitted to the customer before the equipment leaves the factory.

[0052] 13. The equipment uses high-quality rubber seals with a long service life.

[0053] 14. All electrical wires used in the equipment are flame-retardant and non-toxic.

[0054] 15. Each mechanism has indicator lights showing the highest and lowest positions, which are easily visible to the operator.

[0055] 16. Lighting is provided inside the pit and on the inside of the lifting beam.

[0056] 17. The protection level of the main control console is IP54, and the protection level of the detection switch is IP65.

[0057] 18. All overload devices, circuit breakers, contactors, and switches are housed in protective enclosures.

[0058] 19. All equipment, motors, junction boxes, central control consoles, and vehicle-mounted units have reliable grounding, which is connected to the workshop's safety grounding network to prevent electric shock accidents.

[0059] 20. The power switch is key-type and can only be operated by qualified professionals who have been trained and issued a certificate.

[0060] 21. Install a maintenance switch on the junction box on the first floor of the pit. When workers are performing maintenance in the pit, they can disconnect this switch, cutting off the system's power supply. This prevents accidental equipment operation during maintenance and ensures the safety of personnel in the pit.

[0061] The above description is merely one embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A pit-type fixed vehicle lifting machine, comprising a vehicle lifting mechanism, a vehicle body bracket, and a main frame, characterized in that: the main frame is provided with a vehicle body bracket and a vehicle lifting mechanism; The vehicle lifting mechanism includes a bracket, lifting columns, concave lifting beams, a guide device, lifting screws, and a lifting device. It is a four-legged mechanism with four lifting columns as the legs. The lifting columns are equipped with brackets, and the guide device is located on the side of the brackets. The four legs and the brackets are connected to the lifting screws, and the lifting screws are connected to the lifting device. Corresponding concave lifting beams are provided above the four lifting columns. The vehicle body bracket includes a bracket, a lifting column, a guide device, a lifting screw, and a reduction motor. There are two vehicle body brackets, symmetrically arranged in the main frame. Each bracket has a lifting column, a bracket on the lifting column, a support platform on the top of the lifting column, and a guide device on the side of the bracket. The lifting column and the bracket are connected to the lifting screw, and the lifting screw is connected to the reduction motor. The main frame includes an auxiliary track, a supporting chassis, a fixed cover plate, a cover plate bracket, and a following cover plate device. The auxiliary track is set corresponding to the workshop track, and a reliable alignment mechanism - a wheel positioning detection mechanism - is provided on the inner side of the auxiliary track. The fixed cover plate is set on the cover plate bracket, and the fixed cover plate has an opening for the concave lifting beam and the vehicle body bracket to lift and lower. The supporting chassis is set under the cover plate bracket. The following cover plate device includes a following cover plate and a nitrogen spring lifting device. The nitrogen spring lifting device is set on the mounting frame inside the vehicle lifting mechanism, and the following cover plate is connected to the nitrogen spring lifting device.

2. The pit-type fixed frame vehicle machine as described in claim 1, characterized in that: The lifting device consists of a motor connected to a steering box and a bogie, and the bogie is connected to a reducer mounted on the four corners of the support.

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