A dismounting, transporting and assembling device for brake resistor

Abstract

The utility model relates to a kind of dismounting and transporting integrated device for braking resistance, including the main support frame in the middle and the first auxiliary support frame and the second auxiliary support frame connected in the two sides of the main support frame, the top of the first auxiliary support frame and the second auxiliary support frame is higher than the top of main support frame, the both ends of braking resistance connecting support are placed on the top of the first auxiliary support frame and the second auxiliary support frame, braking resistance shell is supported on the main support frame, mobile wheel is installed in the bottom of the main support frame, the top of the main support frame has transverse stop component and longitudinal stop component for limiting the movement of braking resistance shell.The utility model is simple in structure, easy to operate, can not only conveniently dismount braking resistance, but also can quickly transport braking resistance, realize multiple functions such as dismounting, repairing and transporting, which is beneficial to greatly improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of electric locomotive manufacturing technology, and in particular to an integrated device for disassembling and transporting braking resistors. Background Technology

[0002] A braking resistor is a device used to dissipate the regenerative energy of an electric motor as heat. It primarily protects the motor and driver from damage caused by inertial loads, and is commonly used in the motor braking system of electric locomotives. It helps the motor convert the regenerative electrical energy generated during rapid braking into heat, thus assisting in rapid braking. For example, Chinese patent number 202322768738.X discloses a braking resistor with a toothed blade fan. The braking resistor includes a connecting bracket, a braking resistor unit, a braking resistor housing, and a cooling fan. The braking resistor unit is installed inside the braking resistor housing, and the connecting bracket is fixed to the housing. After installation, the connecting bracket is connected to the vehicle body via fasteners. Openings are provided at both longitudinal ends of the braking resistor housing. One opening is an air inlet, and a cooling fan is installed outside the air inlet to dissipate heat from the braking resistor unit. The other opening is an air outlet, connected to a guide vent. The air inlet of the cooling fan is covered with a filter screen, which is fastened to the fan housing.

[0003] When electric locomotives reach a certain operating cycle or experience a malfunction, the braking resistors need to be removed for maintenance. During maintenance, the braking resistors must be detached from the locomotive body and transported to the maintenance station, and then reinstalled after maintenance. Current maintenance methods require crane-assisted lifting and disassembly. The braking resistor is first removed from the locomotive body and then lifted to the maintenance station using a lifting device. After maintenance, it is lifted back to the locomotive body and secured. This current method of braking resistor lifting and maintenance not only requires repeated lifting with tools over long distances, but also necessitates the use of a mobile trolley for transfer if the lifting device cannot directly lift the braking resistor to the maintenance station. Each lifting and lowering of the braking resistor consumes a significant amount of materials and manpower, making disassembly, assembly, and transportation extremely inconvenient and severely impacting the efficiency of braking resistor maintenance. Furthermore, there are safety risks of collisions and injuries to workers during the lifting process. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide an integrated device for disassembling, assembling and transporting brake resistors that is simple in structure, easy to operate, can be easily disassembled and repaired, and can be quickly transported. This device can realize multiple functions such as disassembly, assembly, repair and transportation in one device, which greatly improves the efficiency and safety of operation.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A device for disassembling and transporting a braking resistor includes a central main support frame and a first auxiliary support frame and a second auxiliary support frame connected to both sides of the main support frame. The tops of the first and second auxiliary support frames are higher than the top of the main support frame. The two ends of the braking resistor connecting bracket rest on the tops of the first and second auxiliary support frames. The braking resistor housing is supported on the main support frame. A caster wheel is installed at the bottom of the main support frame. A lateral stop assembly and a longitudinal stop assembly are provided at the top of the main support frame to restrict the movement of the braking resistor housing.

[0007] Furthermore, the main support frame is composed of a top frame and multiple support legs spliced ​​together, with casters installed at the bottom of the support legs, and the first auxiliary support frame and the second auxiliary support frame are respectively welded to the support legs on both sides.

[0008] Furthermore, the first auxiliary support frame and the second auxiliary support frame are respectively composed of an L-shaped frame and a shelf. The bottom end of the L-shaped frame is welded to the support leg, the end of the braking resistor connecting bracket is placed on the top of the L-shaped frame, and the shelf is placed horizontally between the L-shaped frame and the support leg.

[0009] Furthermore, the lateral stop assembly includes two sets of stop protrusions that protrude upward from the top of the main support frame, and the bottom lateral sides of the brake resistor housing are engaged between the two stop protrusions.

[0010] Furthermore, the stop protrusion is a long strip structure extending longitudinally, and the width of the stop protrusion is smaller than the width of the top bearing surface of the main support frame.

[0011] Furthermore, the longitudinal stop assembly consists of two sets, each set including a fixed baffle and a movable baffle. The bottom longitudinal sides of the braking resistor housing are engaged between the fixed baffle and the movable baffle. The movable baffle is configured to rotate vertically to avoid the installation space required when installing the braking resistor.

[0012] Furthermore, the movable baffle is a metal plate connected to a rotating mechanism, which is mounted on the main support frame. The rotating mechanism drives the movable baffle to rotate in the vertical direction. A locking component is installed on the main support frame to lock the movable baffle after it has rotated into position.

[0013] Furthermore, the locking component is a locking pin installed on the main support frame. The locking pin is installed on the main support frame and has a corresponding pin hole on the movable baffle. A spring is installed on the locking pin. After rotating to the stop position, the locking pin is inserted into the pin hole on the movable baffle.

[0014] Furthermore, a limiting post extends longitudinally from the main support frame, and an arc-shaped slide rail matching its rotation trajectory is provided on the movable baffle. The limiting post is placed inside the arc-shaped slide rail, and the length of the arc-shaped slide rail limits the maximum rotation angle of the movable baffle.

[0015] In summary, the integrated disassembly and transportation device for braking resistors provided by this utility model has the following advantages compared with the prior art:

[0016] (1) This utility model has a simple structure and is easy to operate. It is convenient to disassemble and repair the braking resistor and can be transported quickly. It realizes multiple functions such as disassembly, assembly, repair and transportation in one device. It can not only greatly improve the work efficiency of disassembly and repair of the braking resistor, but also eliminate the safety hazards caused by multiple hoisting in the prior art, effectively avoid injury to the operators during operation and greatly improve the safety of the operation.

[0017] (2) The overall structure of this utility model is reasonably designed. Combined with the structural characteristics of the braking resistor, it can not only ensure the overall structural strength of the entire device, but also provide multiple stable support points for the braking resistor, thereby ensuring that the braking resistor can remain stable during disassembly, assembly, maintenance and transportation, and further improving the safety of operation.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the device structure of this utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the device after the braking resistor is installed;

[0023] Figure 3 yes Figure 2 The front view.

[0024] In the picture:

[0025] Braking resistor 1, connecting bracket 11, housing 12, cooling fan 13;

[0026] Main support frame 2, top frame 21, support leg 22, longitudinal beam 211, cross beam 212, reinforcing plate 23, first auxiliary support frame 3, L-shaped frame 31, longitudinal beam 311, cross beam 312, shelf 32, second auxiliary support frame 4, moving wheel 5, transverse stop assembly 6, stop protrusion 61, longitudinal stop assembly 7, fixed baffle 71, movable baffle 72, rotating mechanism 73, rotating handle 731, locking assembly 8, locking pin 81.

[0027] It should be noted that the accompanying drawings and text description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0029] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing 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 this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 this utility model based on the specific circumstances.

[0031] like Figures 1 to 3As shown, this utility model provides an integrated device for disassembling, assembling, and transporting a braking resistor 1. After the braking resistor 1 is removed from the vehicle body, it is installed on this device, which enables the disassembly, assembly, maintenance, and transportation of the braking resistor 1. The braking resistor 1 mainly includes a connecting bracket 11, a housing 12, and a cooling fan 13, etc. The braking resistor unit (not shown in the figure) is installed inside the housing 12.

[0032] In this embodiment, the integrated assembly and transportation device for the braking resistor includes a central main support frame 2 and a first auxiliary support frame 3 and a second auxiliary support frame 4 connected to both sides of the main support frame 2. The tops of the first auxiliary support frame 3 and the second auxiliary support frame 4 are higher than the top of the main support frame 2. The two ends of the connecting bracket 11 of the braking resistor 1 rest on the tops of the first auxiliary support frame 3 and the second auxiliary support frame 4. The outer shell 12 of the braking resistor 1 is supported on the main support frame 2. A moving wheel 5 is installed at the bottom of the main support frame 2. A lateral stop assembly 6 and a longitudinal stop assembly 7 are provided at the top of the main support frame 2 to restrict the movement of the braking resistor 1 in the lateral and longitudinal directions.

[0033] This integrated device, in conjunction with the special structure of the braking resistor 1, provides effective multi-point support for the braking resistor 1 through the central main support frame 2 and the first auxiliary support frames 3 and second auxiliary support frames 4 on both sides. This ensures greater stability and reliability of the braking resistor 1 during disassembly, assembly, maintenance, and transportation, guaranteeing safety during these processes. Furthermore, it eliminates the need for multiple crane operations during disassembly, assembly, maintenance, and transportation. The integrated device has a simple structure and is easy to operate, facilitating both disassembly and maintenance of the braking resistor and enabling rapid transportation. It integrates multiple functions such as disassembly, assembly, maintenance, and transportation into a single device, significantly improving the efficiency of braking resistor disassembly and maintenance while eliminating the safety hazards associated with multiple hoisting operations in existing technologies. This effectively prevents injuries to operators and greatly enhances operational safety.

[0034] In this embodiment, preferably, the main support frame 2 is formed by splicing and welding a top frame 21 and multiple support legs 22. The top frame 21 is formed by splicing and welding multiple longitudinal beams 211 and multiple transverse beams 212. Four support legs 22 are used, and a caster 5 is installed at the bottom of each of the four support legs 22. A first auxiliary support frame 3 and a second auxiliary support frame 4 are welded to two support legs 22 on corresponding sides, and the first auxiliary support frame 3 and the second auxiliary support frame 4 are symmetrically arranged on both sides of the main support frame 2. This simplifies the structure of the device and makes it more stable, effectively supporting the braking resistor 1 and ensuring its stability and reliability during movement. Furthermore, the frame structure also helps reduce the weight of the device, facilitating the rapid movement of the braking resistor 1.

[0035] The first auxiliary support frame 3 and the second auxiliary support frame 4 have the same structure. The following description will take the structure of the first auxiliary support frame 3 as an example. The structure of the second auxiliary support frame 4 will not be described in detail here.

[0036] In this embodiment, the first auxiliary support frame 3 consists of an L-shaped frame 31 and a shelf 32. The L-shaped frame 31 is spliced ​​and welded together from two longitudinal beams 311 and multiple transverse beams 312. The two longitudinal beams 311 are bent at the middle position to form the overall L-shaped structure of the first auxiliary support frame 3. More preferably, the longitudinal beams 311 below the bend have an upward inclined structure from the bottom end. The bottom ends of the two longitudinal beams 311 are directly welded to the sides of the two support legs 22, and a transverse beam 312 at the bottom end is welded between the two support legs 22. The end of the connecting bracket 11 of the braking resistor 1 rests on a transverse beam 312 at the top of the L-shaped frame 31. The L-shaped frame 31 structure can not only meet the position requirements of the connecting bracket 11 of the braking resistor 1 and the support point of the outer shell 12, ensuring effective support, but also make the overall structure of the integrated device more stable, and at the same time, it is also conducive to further reducing the total weight of the device.

[0037] In this embodiment, the placement plate 32 is horizontally positioned between the L-shaped frame 31 and the support legs 22, with its two sides welded to a crossbeam 312 and two support legs 22, respectively. When disassembling and repairing the braking resistor 1, the tools and components used for disassembly and repair can be temporarily placed on the placement plate 32. This simplifies the structure of the device and facilitates the disassembly and maintenance of the braking resistor 1.

[0038] In this embodiment, the main support frame 2, the first auxiliary support frame 3, and the second auxiliary support frame 4 are all made of Q235 carbon structural steel and welded from 40mm×40mm×1.5mm square tubing. The overall dimensions (length*width*height) of the integrated device are approximately 2206mm×977mm×1450mm.

[0039] In this embodiment, it is further preferred that the lateral stop assembly 6 includes two sets of stop protrusions 61 protruding upward from the top of the main support frame 2. The bottom lateral sides of the housing 12 of the braking resistor 1 are locked between the two stop protrusions 61 to prevent the braking resistor 1 from moving laterally and causing danger during disassembly, assembly and transportation.

[0040] In this embodiment, it is further preferred that the stop protrusion 61 is a long strip structure extending longitudinally to ensure the contact length with the braking resistor housing 12. The width of the stop protrusion 61 is smaller than the width of the top bearing surface of the main support frame 2, that is, the width of the stop protrusion 61 is smaller than the width of the crossbeam 212 of the main support frame 2 forming the top frame 21. The other surfaces of the crossbeam 212 are used to support the housing 12. In this way, it can not only serve as a stop and provide stable support, but also simplify the structure.

[0041] In this embodiment, it is further preferred that the longitudinal stop assembly 7 is provided in two sets. Each set of longitudinal stop assembly 7 includes a fixed baffle 71 and a movable baffle 72. The bottom longitudinal sides of the brake resistor housing 12 are stuck between the fixed baffle 71 and the movable baffle 72. This can prevent the brake resistor 1 from moving longitudinally and causing danger during disassembly, assembly and transportation.

[0042] The movable baffle 72 is configured to rotate vertically to avoid the installation space required for the braking resistor 1 during installation. This facilitates the installation and removal of the braking resistor 1 from the device, reduces operational difficulty, improves operational efficiency, and ensures that the braking resistor 1 can be stably fixed on the main support frame 2.

[0043] In this embodiment, it is further preferred that both the fixed baffle 71 and the movable baffle 72 are made of a single metal plate, more preferably stainless steel. Both the fixed baffle 71 and the movable baffle 72 protrude upwards from the top of the main support frame 2. The fixed baffle 71 is welded or fixed to the main support frame 2 with screws, while the movable baffle 72 is connected to the rotating mechanism 73. The rotating mechanism 73 drives the movable baffle 72 to rotate in the vertical direction, thereby switching between the avoidance position and the stop position.

[0044] The rotating mechanism 73 includes a rotating rod (not shown in the figure), with a rotating handle 731 installed at the outer end of the rotating rod. The other end of the rotating rod is fixed to the movable baffle 72. The operator rotates the rotating handle 731 to rotate the movable baffle 72 vertically. A limiting post (not shown in the figure) extends longitudinally from the main support frame 72. An arc-shaped slide rail (not shown in the figure) matching the rotation trajectory is provided on the movable baffle 72. The limiting post is placed within the arc-shaped slide rail. During the rotation of the movable baffle 72, the limiting post slides relative to the arc-shaped slide rail, thus preventing the movable baffle 72 from wobbling during rotation. The length of the arc-shaped slide rail limits the maximum rotation angle of the movable baffle 72, facilitating the operator's adjustment of the movable baffle 72 between the avoidance position and the stop position. In this embodiment, a triangular reinforcing plate 23 is welded between the top frame 21 and the support leg 22 of the main support frame 2. The rotating mechanism 73 is mounted on this reinforcing plate 23. Two sets of rotating mechanisms 73 are mounted on the two reinforcing plates 23 on the same side.

[0045] In this embodiment, a locking assembly 8 is installed on the main support frame 2 to lock the movable baffle 72 after it is rotated to the stop position, thus restricting the movable baffle 72 to the upward-protruding stop position. The locking assembly 8 preferably adopts a locking pin 81 structure installed on the main support frame 2. A corresponding pin hole (not shown in the figure) is provided on the movable baffle 72, and a spring (not shown in the figure) is installed on the locking pin 81. After rotating to the stop position, the locking pin 81 is inserted into the pin hole on the movable baffle 72 under the elastic force of the spring and remains in the extended stop position according to the elastic force. A positioning pin pull ring is provided at the outer end of the locking pin 81 for easy pulling by the operator. When it is necessary to rotate the movable baffle 72, the operator can pull the locking pin 81 backward to compress the spring and disengage the locking pin 81 from the pin hole, thus allowing the movable baffle 72 to be rotated.

[0046] like Figure 2 As shown, when maintenance of the braking resistor 1 is required, a crane is used to install the braking resistor 1, which has been removed from the vehicle body, onto the integrated device. The two ends of the connecting bracket 11 of the braking resistor 1 are placed on top of the first auxiliary support frame 3 and the second auxiliary support frame 4, allowing the braking resistor 1 to be suspended on the integrated device. Simultaneously, the bottom of the outer casing 12 of the braking resistor 1 is supported on the main support frame 2. Before hoisting, the movable baffle 72 is rotated to a clearance position, with the bottom of the outer casing 12 horizontally positioned between the two stop protrusions 61. After hoisting, the movable baffle 72 is rotated to the stop position, so that the bottom of the outer casing 12 vertically positions between the two fixed baffles 71 and the two movable baffles 72. Operators can directly disassemble components such as the air outlet, fan, and braking unit of the braking resistor 1 from the integrated device.

[0047] The adoption of this technical solution has the following beneficial effects:

[0048] 1. This integrated device has a simple structure and is easy to operate. It facilitates the disassembly and maintenance of the braking resistor and enables rapid transportation. It realizes multiple functions such as disassembly, maintenance, and transportation in one device, which can not only greatly improve the work efficiency of disassembly and maintenance of the braking resistor, but also eliminate the safety hazards caused by multiple hoisting in the existing technology, effectively avoid injury to the operators during operation, and greatly improve the safety of the operation.

[0049] 2. The integrated device has a reasonable overall structural design. Combined with the structural characteristics of the braking resistor, it can not only ensure the overall structural strength of the device, but also provide multiple stable support points for the braking resistor. This ensures that the braking resistor can remain stable during disassembly, assembly, maintenance and transportation, and further improves the safety of operation.

[0050] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A device for disassembling, assembling, and transporting a braking resistor, characterized in that: It includes a central main support frame and a first auxiliary support frame and a second auxiliary support frame connected on both sides of the main support frame. The tops of the first and second auxiliary support frames are higher than the top of the main support frame. The two ends of the braking resistor connecting bracket rest on the tops of the first and second auxiliary support frames. The braking resistor housing is supported on the main support frame. A moving wheel is installed at the bottom of the main support frame. A lateral stop assembly and a longitudinal stop assembly are provided at the top of the main support frame to restrict the movement of the braking resistor housing.

2. The integrated disassembly and transportation device for braking resistors according to claim 1, characterized in that: The main support frame is composed of a top frame and multiple support legs. Movable wheels are installed at the bottom of the support legs. The first auxiliary support frame and the second auxiliary support frame are respectively welded to the support legs on both sides.

3. The integrated disassembly and transportation device for braking resistors according to claim 2, characterized in that: The first auxiliary support frame and the second auxiliary support frame are respectively composed of an L-shaped frame and a shelf. The bottom end of the L-shaped frame is welded to the support leg, the end of the brake resistor connecting bracket is placed on the top of the L-shaped frame, and the shelf is placed horizontally between the L-shaped frame and the support leg.

4. The integrated disassembly and transportation device for braking resistors according to any one of claims 1-3, characterized in that: The lateral stop assembly includes two sets of stop protrusions that protrude upward from the top of the main support frame, and the bottom lateral sides of the brake resistor housing are engaged between the two stop protrusions.

5. The integrated disassembly and transportation device for braking resistors according to claim 4, characterized in that: The stop protrusion is a long strip-shaped structure extending longitudinally, and the width of the stop protrusion is smaller than the width of the top bearing surface of the main support frame.

6. The integrated disassembly and transportation device for braking resistors according to any one of claims 1-3, characterized in that: The longitudinal stop assembly consists of two sets, each set including a fixed baffle and a movable baffle. The bottom longitudinal sides of the brake resistor housing are engaged between the fixed baffle and the movable baffle. The movable baffle is configured to rotate vertically to avoid the installation space required when installing the brake resistor.

7. The integrated disassembly and transportation device for braking resistors according to claim 6, characterized in that: The movable baffle is a metal plate connected to a rotating mechanism. The rotating mechanism is mounted on the main support frame and drives the movable baffle to rotate in the vertical direction. A locking component is installed on the main support frame to lock the movable baffle after it has rotated to the correct position.

8. The integrated disassembly and transportation device for braking resistors according to claim 7, characterized in that: The locking assembly is a locking pin installed on the main support frame. The locking pin is installed on the main support frame and has a corresponding pin hole on the movable baffle. A spring is installed on the locking pin. After rotating to the stop position, the locking pin is inserted into the pin hole on the movable baffle.

9. The integrated disassembly and transportation device for braking resistors according to claim 7, characterized in that: A limiting post extends longitudinally from the main support frame, and an arc-shaped slide rail matching its rotation trajectory is provided on the movable baffle. The limiting post is placed inside the arc-shaped slide rail, and the length of the arc-shaped slide rail limits the maximum rotation angle of the movable baffle.

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