Remote-controlled electric locomotive cooling liquid replacing device

Abstract

The utility model provides a remote control electric locomotive cooling liquid replacing device which comprises a box body, a motor, a gear oil pump, a reversing switch and a control box, a support is fixed at the bottom of the inner side of the box body, the motor and the gear oil pump are fixed on the support, an output shaft of the motor is connected with the gear oil pump through a coupler, and the gear oil pump is connected with a water inlet pipe and a water outlet pipe. The water inlet and the water outlet are arranged outside the box body; a horizontal storage layer is welded in the box body, and a connecting water pipe and a power cable are placed on the storage layer; a remote control switch module is arranged in the control box, positive and negative rotation and stopping of the motor are remotely controlled through the remote control switch module or manually controlled through a reversing switch, and universal wheels are installed at the bottom of the box body. When in use, remote control is adopted, the box body and the switch cannot be contacted, short-circuit electric leakage does not exist, absolute safety of operators is guaranteed, meanwhile, the operators do not need to go up and down the locomotive frequently, and the locomotive cooling liquid replacement efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of locomotive repair and maintenance, in particular to a remotely controlled electric locomotive coolant replacement device. Technical Background

[0002] An electric locomotive is a train that draws electricity from the power grid or rails and uses electric motors to propel the vehicle. The HXD2 electric locomotive's electric drive system consists of a grid-side circuit, a main transformer, a main converter, and a traction motor. When the locomotive needs to be disassembled for storage, the traction converter must be removed for inspection. The traction converter is interconnected by flanges, water pipes, and a cooling tower, so the remaining coolant must be extracted before the converter is disassembled and removed to prevent leakage and damage to the converter and locomotive floor wiring.

[0003] Each HXD2 locomotive consists of two locomotives, A and B. Each locomotive has two main converter cabinets with essentially identical structures and principles. Each main converter cabinet is composed of two identical sets of main converters, cooling systems, and corresponding control units. There are four main converter cabinets and eight expansion tanks. In recent years, the number of HXD2 locomotives based on main converters has increased, and the task of replacing the coolant in the traction converters and cooling towers has increased. However, the corresponding coolant replacement equipment is technologically backward, requiring operators to frequently get on and off the locomotive, resulting in low replacement efficiency, affecting the next maintenance step and thus overall operational efficiency. Furthermore, manual operation of the control switches poses a risk of electric shock. Utility Model Content

[0004] The purpose of the present utility model is to provide a remote control electric locomotive coolant replacement device to solve the problems and defects mentioned in the above technical background.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A remote-controlled coolant replacement device for an electric locomotive comprises a box body, a motor, a gear oil pump, a forward / reverse switch, and a control box. A support is fixed to the bottom inner side of the box body. The motor and the gear oil pump are fixed to the support by bolts. The motor output shaft is connected to the gear oil pump by an elastic pin coupling. A water inlet pipe and a water outlet pipe are connected to the gear oil pump, and the water inlet and the water outlet are arranged outside the box body. The forward / reverse switch is electrically connected to the motor. A remote control switch module and two groups of power switches are arranged in the control box. The remote control switch module comprises a dual-way industrial remote control switch and two groups of AC contactors. The power cable is connected to the two groups of power switches. The two groups of power switches respectively control the forward / reverse switch and the dual-way industrial remote control switch. The dual-way industrial remote control switch controls the two groups of AC contactors. The AC contactor is electrically connected to the motor. The forward, reverse, and stop of the motor are remotely controlled by the dual-way industrial remote control switch, or manually controlled by the forward / reverse switch. The dual-way industrial remote control switch is equipped with a corresponding remote control device. A universal wheel is installed at the bottom of the box body.

[0007] Furthermore, the box body and the control box are provided with outward-opening cabinet doors, which are connected by hinges and are both provided with locks.

[0008] A cabinet door is installed for the box body. When adding coolant, the two connecting water pipes and the power cable are pulled out from the cabinet door, which makes the operation space larger. At the same time, it is convenient to repair the motor or gear oil pump in the box when it fails. The control box is equipped with a cabinet door for easy maintenance of the circuit.

[0009] Furthermore, the diameter of the universal wheel is designed to be 18 to 24 cm.

[0010] The box is made of metal and is heavy in itself. At the same time, it has to bear the load of power cables, connecting water pipes, control switches, motors, water pumps and other components. It is necessary to increase the diameter of the universal wheels and ensure their supporting stiffness and bending and torsional stiffness.

[0011] Furthermore, a quick connector male is provided on the water inlet and the water outlet, and a quick connector female is provided at both ends of the connecting water pipe.

[0012] The water inlet, water outlet and connecting water pipes of the coolant replacement device are connected by quick connectors, which can be quickly connected when in use, saving the speed of adding or extracting coolant, ensuring that the locomotive maintenance coolant replacement can be completed faster and better, will not delay the production progress of other teams, and successfully complete the locomotive maintenance task.

[0013] Preferably, the power cable is wound on a cable reel, a reel shaft is welded on the storage layer, and the cable reel is sleeved on the reel shaft.

[0014] Two sufficiently long connecting water pipes and a sufficiently long power cable are often placed on the storage layer of the box. Therefore, the storage layer will be relatively messy and easy to get entangled and knotted. The use of cable reels to quickly reel in or release cables can ensure the cleanliness of the box and there is no need to specially organize the power cables after use.

[0015] Preferably, the water inlet pipe and the water outlet pipe are made of stainless steel hoses.

[0016] The water inlet and outlet pipes connecting the gear oil pump and the water inlet and outlet of the box are made of stainless steel hoses, which are more reliable, not easy to be damaged, and are flexible and movable.

[0017] Preferably, the motor is a YL90 single-phase dual-value capacitor asynchronous motor with a power of 2.2KW.

[0018] Increasing the motor power can ensure a larger conveying flow rate and save a lot of time costs within the corresponding range.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. When the utility model is used, the forward and reverse conversion and start and stop operations of the motor can be achieved through remote control without touching the box, control box or motor. There is no problem of short circuit leakage to hurt the operator, which ensures the absolute safety of the operator.

[0021] 2. In the utility model, remote control is achieved through a dual-way industrial remote control switch, so that the operator does not need to frequently get on and off the locomotive to operate the locomotive coolant replacement device, which can save a lot of time and manpower, greatly improve work efficiency, and ensure that the locomotive maintenance coolant replacement can be completed faster and better, will not delay the production progress of other teams, and successfully complete the locomotive maintenance task.

[0022] 3. In the utility model, a forward / reverse switch is also provided, and the motor can also be controlled by the forward / reverse switch. When the remote control switch fails, manual control is adopted by the forward / reverse switch, which does not affect the operation and ensures the completion of the production task. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic structural diagram of a coolant replacement device according to an embodiment of the present utility model;

[0024] Figure 2 This is a circuit control principle diagram of the coolant replacement device according to an embodiment of the present utility model;

[0025] Figure 3 This is a schematic diagram of the remote control device for the coolant replacement device according to an embodiment of the present utility model;

[0026] Figure numerals: 1. Box body; 1-1. Storage layer; 1-2. Universal wheel; 1-3. Cabinet door; 1-4. Reel shaft; 2. Motor; 3. Gear oil pump; 4. Forward / reverse switch; 5. Control box; 6. Support; 7. Elastic pin coupling; 8. Water inlet pipe; 9. Water outlet pipe; 10. Water inlet; 11. Water outlet; 12. Connecting water pipe; 13. Cable reel. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solution of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] like Figure 1As shown, a remote control electric locomotive coolant replacement device includes a box body 1, a motor 2, a gear oil pump 3, a forward / reverse switch 4, and a control box 5. A support 6 is fixed to the bottom of the inner side of the box body 1. The motor 2 and the gear oil pump 3 are fixed to the support 6 by bolts. The output shaft of the motor 2 and the gear oil pump 3 are connected by an elastic pin coupling 7. The gear oil pump 3 is connected to a water inlet pipe 8 and a water outlet pipe 9, and the water inlet 10 and the water outlet 11 are set outside the box body 1; a horizontal storage layer 1-1 is welded inside the box body 1, and a connecting water pipe 12 and a cable reel 13 are placed on the storage layer 1-1; the forward / reverse switch 4 and The motor 2 is electrically connected, and a remote control switch module and two sets of power switches are provided in the control box 5. The remote control switch module includes a dual-way industrial remote control switch and two sets of AC contactors. The power cable is connected to the two sets of power switches. The two sets of power switches respectively control the forward and reverse switches 4 and the dual-way industrial remote control switches. The dual-way industrial remote control switches control the two sets of AC contactors. The AC contactors are electrically connected to the motor 2. The forward, reverse and stop of the motor 2 are remotely controlled by the dual-way industrial remote control switch, or manually controlled by the forward and reverse switch 4. The dual-way industrial remote control switch is equipped with a corresponding remote control device. Universal wheels 1-2 are installed at the bottom of the box 1.

[0029] In this embodiment, cabinet doors 1-3 are provided on the front, back and top of the box body 1, and the control box 5 is also provided with outward-opening cabinet doors 1-3. The cabinet doors 1-3 are connected by hinges and are each provided with a lock.

[0030] Among them, the diameter of the universal wheels 1-2 is designed to be 20 cm, which can effectively increase the load-bearing and mobility capabilities.

[0031] The water inlet 10 and the water outlet 11 are both provided with quick connector males, and both ends of the connecting water pipe 12 are provided with quick connector females.

[0032] The power cable is wound on the cable reel 13, a reel shaft 1-4 is welded on the storage layer 1-1, and the cable reel 13 is sleeved on the reel shaft 1-4.

[0033] The water inlet pipe 8 and the water outlet pipe 9 are made of stainless steel hoses.

[0034] The motor 2 is a YL90 single-phase dual-value capacitor asynchronous motor with a power of 2.2KW.

[0035] The manufacturing method of the box body 1 is as follows: a rectangular hollow steel with a specification of 30×20 is used to weld the box frame and the cabinet door frame, wherein the box frame is reserved with a storage layer 1-2, and then the box frame and the cabinet door frame surface are wrapped with thin iron sheets, and then the cabinet doors 1-3 are connected to the box body 1 through hinges, and the control box 5 is made by bending thin steel sheet metal, and the control box 5 is fixed on the manufactured box body, and cabinet doors 1-3 are also made for the control box 5. A vertical reel shaft 1-4 is welded on the storage layer 1-2 to facilitate the fixing of the cable reel 13, and finally a padlock is placed on each cabinet door 1-3.

[0036] The electrical components of the box 1 are arranged in the control box 5, such as Figure 2 As shown, the control box 5 is provided with two groups of power switches, a dual-way industrial remote control switch, and two groups of AC contactors. The power cables are connected to the two groups of power switches. The power switches are respectively connected to the forward and reverse switches 4 and the dual-way industrial remote control switches. The forward and reverse switch 4 is connected to the motor 2. The dual-way industrial remote control switch is connected to the AC contactor, and the AC contactor is connected to the motor 2. The forward and reverse rotation and stop of the motor 2 are remotely controlled by the dual-way industrial remote control switch, or manually controlled by the forward and reverse switch 4, but they cannot be used at the same time. The on and off of the remote control switch is controlled by the remote control device to control the opening and closing of the AC contactor. The dual-way industrial remote control switch is equipped with a corresponding remote control device. The schematic diagram of the remote control device is shown as follows Figure 3 shown.

[0037] The use process of the embodiment of the utility model is described as follows:

[0038] For example, to extract coolant from the traction inverter, first push the coolant replacement device of the present invention under the locomotive cab, open the cabinet door 1-3 of the box body 1, take out the two connecting water pipes 12 from the storage layer 1-1, one end of the first connecting water pipe 12 is connected to the water inlet 10 through a quick connector, and one end of the second connecting water pipe 12 is connected to the water outlet 11 through a quick connector. The other end of the first connecting water pipe 12 is passed from the locomotive door to the locomotive, and the operator on the locomotive drags the connecting water pipe 12 from the door to the traction inverter and connects it to the male connector of the quick connector of the traction inverter. The operator on the ground uses a forklift to move a bucket and inserts the other end of the second connecting water pipe 12 into the bucket. Then, pull out the power cable from the box and connect it to the distribution box, turn on the power switch, turn on the motor 2 with the remote control device, use the remote control device to control the motor 2 to work, and start pumping out the coolant.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A remote-controlled electric locomotive coolant replacement device, characterized in that: The invention comprises a box body, a motor, a gear oil pump, a forward / reverse switch and a control box. A support is fixed on the bottom inner side of the box body. The motor and the gear oil pump are fixed to the support by bolts. The motor output shaft is connected to the gear oil pump by an elastic pin coupling. The gear oil pump is connected to a water inlet pipe and a water outlet pipe, and the water inlet and the water outlet are arranged outside the box body. A horizontal storage layer is welded inside the box body, and a connecting water pipe and a power cable are placed on the storage layer. The forward / reverse switch is electrically connected to the motor. A remote control switch module and two groups of power switches are provided in the control box. The remote control switch module comprises a dual-way industrial remote control switch and two groups of AC contactors. The power cable is connected to the two groups of power switches. The two groups of power switches control the forward / reverse switch and the dual-way industrial remote control switch respectively. The dual-way industrial remote control switch controls the two groups of AC contactors. The AC contactor is electrically connected to the motor. The forward, reverse and stop of the motor are remotely controlled by the dual-way industrial remote control switch, or manually controlled by the forward / reverse switch. The dual-way industrial remote control switch is equipped with a corresponding remote control device. A universal wheel is installed at the bottom of the box body.

2. The remote control electric locomotive coolant replacement device according to claim 1, characterized in that: The box body and the control box are provided with cabinet doors which open outwards, the cabinet doors are connected by hinges, and the cabinet doors are both provided with locks.

3. The remote control electric locomotive coolant replacement device according to claim 1, characterized in that: The diameter of the universal wheel is designed to be 18 to 24 cm.

4. The remote control electric locomotive coolant replacement device according to claim 1, characterized in that: The water inlet and the water outlet are both provided with quick connector males, and both ends of the connecting water pipe are provided with quick connector females.

5. The remote control electric locomotive coolant replacement device according to claim 1, characterized in that: The power cable is wound on a cable reel, a reel shaft is welded on the storage layer, and the cable reel is sleeved on the reel shaft.

6. The remote control electric locomotive coolant replacement device according to claim 1, characterized in that: The water inlet pipe and the water outlet pipe are both made of stainless steel hoses.

7. The remote control electric locomotive coolant replacement device according to claim 1, characterized in that: The motor is a YL90 single-phase dual-value capacitor asynchronous motor with a power of 2.2KW.

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