Movable JC side bearing dismounting and mounting device suitable for large railway maintenance machinery

Abstract

The utility model provides a movable JC side bearing disassembling and assembling device suitable for large railway maintenance machinery, and belongs to the technical field of railway public service equipment maintenance. The device comprises an assembly body, a miniature electric hydraulic pump station, a control handle, a fixed pressing block, a transverse hydraulic oil cylinder, a reset spring and the like, the control handle is used for controlling the miniature electric hydraulic pump station, a reset key and a stretching key are arranged on the control handle, and the miniature electric hydraulic pump station is connected with the transverse hydraulic oil cylinder through a pipeline. And the transverse hydraulic oil cylinder controls the movement between the two fixed pressing blocks, so that the side bearing is disassembled and assembled under the control action of the fixed pressing blocks. Compared with the prior art, parts, equipment manufacturing cost and maintenance cost are reduced, and the movable walking wheels are arranged, so that use is convenient; an automatic control handle is arranged, so that the operation is safe and convenient.

Description

Technical Field

[0001] The utility model relates to a mobile JC side bearing disassembly and assembly device suitable for large-scale railway track maintenance machinery, belonging to the technical field of maintenance of large-scale railway engineering machinery and equipment. Background Art

[0002] Large-scale railway track maintenance machinery generally includes the main components such as car body, bogie, brake device, coupler buffer device, working device, etc. The car body and bogie are connected as a whole through the center plate (or center pin) and side bearing. As a connecting device between the car body and the bogie, the side bearing is used to make the bogie rotate relative to the car body when the large-scale railway track maintenance machinery passes through a curve, increase the rotation resistance torque between the car body and the bogie, prevent the car body from tilting too much, alleviate the impact of uneven routes on large-scale railway track maintenance machinery, and ensure that large-scale railway track maintenance machinery has good running stability and stability. It bears part of the weight of the frame, prevents the frame from excessive tilting and swinging, and can also effectively reduce the yaw vibration of the frame. When the vehicle is on a track curve, the car body tilts outward. Since the center pin or center plate can swing, part of the weight of the tilted car body is pressed on the side bearings, and this part of the weight is transferred to the frame through compressed rafter rubber or springs, which can limit the rolling motion of the car body and is beneficial to the anti-overturning safety of the vehicle. At the same time, when the frame rotates relative to the bogie, the friction plate under the frame crossbeam and the nylon friction plate of the side bearing slide relative to each other, which can ensure that the vehicle passes through the curved track smoothly.

[0003] The side bearing usually has a side bearing seat, which is in the shape of a rectangular box with an opening on one side, and the wide sides of the side bearing seat are all provided with openings. An elastic side bearing body is installed in the side bearing seat, and a wear plate is clamped on the top of the side bearing body. After the side bearing has been used for a period of time, the side bearing body will age and crack, and the side bearing seat may exceed the size limit due to long-term wear and tear, and cannot be tightly matched with the side bearing body. The wear plate will also be worn and need to be replaced.

[0004] Therefore, during the overhaul of the side bearing, the side bearing seat needs to be separated from the side bearing body, and after the overhaul is completed, the disassembled components need to be assembled. Currently, there are some tooling for separating the side bearing seat from the side bearing body on the market. For example, the Chinese utility model patent "Side bearing disassembly and assembly machine" (patent number ZL201520740610.5, published on February 17, 2016) records the following structure:

[0005] Disassembly of JC series elastic side bearing: Place the JC series elastic side bearing in reverse position on the workbench plane in the fixed position of the fixture, move the disassembly and assembly control switch to the left with the right hand, so that the cylinder of the horizontal hydraulic system on the workbench is fully extended to compress the side bearing body, so that a gap is generated between the elastic side bearing body and the side bearing seat, and the two are separated;

[0006] Assembly of JC series elastic side bearings: Place the side bearing body on the fixed position of the fixture on the workbench plane, move the disassembly and assembly control switch to the left with your right hand to make the horizontal pressure head cylinder fully extend to compress the side bearing body; manually place the side bearing seat in the correct position just above the compressed side bearing body, and check and confirm; move the disassembly and assembly control switch downward with your right hand to make the pressure head cylinder of the vertical hydraulic system compress the elastic side bearing; operate the disassembly and assembly control switch until the pressure head cylinder of the horizontal lateral hydraulic system and the pressure head cylinder of the vertical hydraulic system return to their original positions; change the side bearing to another end, and then move the disassembly and assembly control switch downward with your right hand until the pressure head presses the wear plate, and the assembly process is completed.

[0007] The side bearing disassembly and assembly machine described in the above-mentioned prior art discloses the structure and use of the side bearing disassembly and assembly machine, which mainly separates the side bearing body from the side bearing seat by operating the horizontal pressure head oil cylinder to compress the side bearing body laterally from the opening of the side bearing seat, or by operating the horizontal pressure head oil cylinder to compress the side bearing body laterally from the opening of the side bearing seat, and then invert the side bearing seat on the side bearing body, and use the vertical pressure head oil cylinder to press the side bearing seat downward, and then release the pressure of the horizontal and vertical pressure head oil cylinders in turn, so that the side bearing seat and the side bearing body have an interference fit, and the two are assembled. This side bearing disassembly and assembly machine solves the problem of disassembling the side bearing, but the entire side bearing disassembly and assembly machine mostly needs to be operated manually, which has a high risk factor. In addition, two sets of horizontal and vertical hydraulic systems are designed to complete the disassembly and assembly of the side bearing, which increases the equipment manufacturing cost, and because of too many parts, the maintenance cost is increased. Summary of the invention

[0008] The purpose of the utility model is to solve the problems existing in the above-mentioned prior art and further provide a mobile JC side bearing disassembly and assembly device suitable for large-scale railway maintenance machinery.

[0009] The purpose of this utility model is achieved through the following technical solutions:

[0010] A mobile JC side bearing disassembly and assembly device suitable for large-scale railway maintenance machinery, comprising: a mobile pull rod, an assembly body, a running wheel, a cable, a micro electric hydraulic pump station, a pipeline, a control handle, a fixed pressure block, a connecting plate, a transverse hydraulic cylinder, a first bolt rod, an adjustment fixing hole, a support plate, a second bolt rod, a reset spring and a mounting hole;

[0011] Among them, a moving pull rod is installed on one side of the assembly body, a traveling wheel is installed on the lower surface of the assembly body, and two mounting holes are provided on the upper surface of the assembly body. Connecting plates are arranged in parallel on both sides of the mounting holes inside the assembly body, through holes are opened on the connecting plates at relative positions, and the support plate is arranged through the mounting holes. A fixed pressure block is arranged on the top of the support plate, and a plurality of adjustment and fixing holes are opened in the middle of the support plate. The first bolt rod passes through the through hole of the connecting plate and the adjustment and fixing hole and cooperates with a nut. A transverse hydraulic cylinder is arranged between the two support plates, and the transverse hydraulic cylinder is connected to the support plate through a second bolt rod and a nut. The tail ends of the two support plates are connected through a reset spring. A micro electric hydraulic pump station is installed inside the assembly body, and the micro electric hydraulic pump station is connected to the transverse hydraulic cylinder through a pipeline. A control handle is installed on the upper surface of the assembly body, and the control handle is connected to the micro electric hydraulic pump station through a cable.

[0012] Furthermore, the number of the fixing holes is at least 3.

[0013] Furthermore, the micro electric hydraulic pump station is connected to an external power source.

[0014] Furthermore, the connecting plate and the assembly body are fixed by welding.

[0015] The beneficial effects of the utility model are:

[0016] The utility model overcomes the technical problems in the prior art that two sets of horizontal and vertical hydraulic systems need to be designed to complete the disassembly and assembly of the side bearing, which increases the equipment manufacturing cost and increases the maintenance cost due to too many parts.

[0017] In the utility model, a plurality of adjustment fixing holes are arranged on the support plate, and the technicians can adjust the fixed pressing block to extend to different heights by installing it in different fixing holes, so as to adapt to side bearings of different specifications.

[0018] Compared with the prior art, the utility model is provided with movable running wheels on the one hand, which is easy to use, and is provided with an automatic control handle, which is safe and convenient to operate. On the other hand, compared with the prior art, which uses two sets of horizontal and vertical hydraulic systems to complete the disassembly and assembly of the side bearings, the equipment manufacturing cost is relatively high, and the maintenance cost is increased due to too many parts. The utility model only provides one transverse hydraulic cylinder, and completes the assembly and separation of the side bearing seat and the side bearing body through two fixed pressure blocks cooperating to compress the side bearing body.

[0019] The utility model is more automated in disassembly and assembly of the side bearing, and waste materials can be used in the selection of materials, so that a large amount of production cost can be saved by repairing and reusing waste materials, and the technical problems that the prior art relies on much manual operation, is very likely to cause personal injury and requires high production costs can be solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 The utility model is a structural schematic front view of a mobile JC side bearing disassembly and assembly device suitable for large-scale railway maintenance machinery.

[0021] Figure 2 The utility model is a structural schematic diagram of a mobile JC side bearing disassembly and assembly device suitable for large-scale railway maintenance machinery when in use.

[0022] Figure 3 The utility model is a schematic top view of the structure of a mobile JC side bearing disassembly and assembly device suitable for large-scale railway maintenance machinery.

[0023] The reference numerals in the figure are: 1 for the movable pull rod, 2 for the assembly body, 3 for the running wheel, 4 for the cable, 5 for the micro electric hydraulic pump station, 6 for the pipeline, 7 for the control handle, 8 for the fixed pressure block, 9 for the connecting plate, 10 for the transverse hydraulic cylinder, 11 for the first bolt rod, 12 for the adjustment fixing hole, 13 for the support plate, 14 for the second bolt rod, 15 for the return spring, and 16 for the mounting hole. DETAILED DESCRIPTION

[0024] The utility model will be further described in detail below in conjunction with the accompanying drawings: This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method is given, but the protection scope of the utility model is not limited to the following embodiments.

[0025] like Figures 1 to 3 As shown, the present embodiment involves a mobile JC side bearing disassembly and assembly device suitable for large-scale railway maintenance machinery, including: a mobile pull rod 1, an assembly body 2, a running wheel 3, a cable 4, a micro electric hydraulic pump station 5, a pipeline 6, a control handle 7, a fixed pressure block 8, a connecting plate 9, a transverse hydraulic cylinder 10, a first bolt rod 11, an adjustment fixing hole 12, a support plate 13, a second bolt rod 14, a reset spring 15 and a mounting hole 16;

[0026] Among them, a moving rod 1 is installed on one side of the assembly body 2, and a running wheel 3 is installed on the lower surface of the assembly body 2. Figure 3As shown, two mounting holes 16 are provided on the upper surface of the assembly body 2, and connecting plates 9 are provided in parallel on both sides of the mounting holes 16 inside the assembly body 2, and the connecting plates 9 are fixed to the assembly body 2 by welding. Through holes are provided at relative positions on the connecting plate 9, and the support plate 13 is provided through the mounting holes 16. A fixed pressure block 8 is provided at the top of the support plate 13. A plurality of adjustment fixing holes 12 are provided in the middle of the support plate 13, and the number of the fixing holes 12 is at least 3. The first bolt rod 11 passes through the through hole of the connecting plate 9 and the adjustment fixing hole 12 and cooperates with the nut. The support plate 13 and the connecting plate 9 are movably connected. The technician can install the first bolt rod 11 in different fixing holes 12 to adjust the fixed pressure block 8 to extend to different heights to adapt to side bearings of different specifications. The two support plates 13 are connected. A transverse hydraulic cylinder 10 is arranged in the middle, and the transverse hydraulic cylinder 10 is connected to the support plate 13 through a second bolt rod 14 and a nut. The transverse hydraulic cylinder 10 and the support plate 13 are movably connected, and the tail ends of the two support plates 13 are connected through a reset spring 15. A micro electric hydraulic pump station 5 is installed inside the assembly body 2, and the micro electric hydraulic pump station 5 is connected to the transverse hydraulic cylinder 10 through a pipeline 6. A control handle 7 is installed on the upper surface of the assembly body 2, and the control handle 7 is connected to the micro electric hydraulic pump station 5 through a cable 4, and the micro electric hydraulic pump station 5 is connected to an external power supply.

[0027] Example 1

[0028] like Figure 1 As shown, a mobile JC side bearing disassembly and assembly device suitable for large-scale railway maintenance machinery includes: a mobile pull rod 1, an assembly body 2, a running wheel 3, a cable 4, a micro electric hydraulic pump station 5, a pipeline 6, a control handle 7, a fixed pressure block 8, a connecting plate 9, a transverse hydraulic cylinder 10, a first bolt rod 11, an adjustment fixing hole 12, a support plate 13, a second bolt rod 14, a reset spring 15 and a mounting hole 16; the control handle 7 is connected to the micro electric hydraulic pump station 5 through the cable 4, and the control handle 7 is used to control the micro electric hydraulic pump station 5. The control handle 7 is provided with a reset button and a stretching button;

[0029] After pressing the stretch button, the micro electric hydraulic pump station 5 is started, and the micro electric hydraulic pump station 5 is connected to the transverse hydraulic cylinder 10 through the pipeline 6. After the micro electric hydraulic pump station 5 is running, the transverse hydraulic cylinder 10 is stretched, so that the output end of the transverse hydraulic cylinder 10 is stretched and moved laterally. The transverse hydraulic cylinder 10 is connected to the support plate 13, thereby driving the support plate 13 to rotate around the first bolt rod 11 by a certain angle, so that the distance between the two fixed pressure blocks 8 is reduced. The support plate 13 causes the fixed pressure block 8 to produce the required action effect through the transverse hydraulic cylinder 10, such as Figure 2 As shown;

[0030] In the present embodiment, the transverse hydraulic cylinder 10 is a single-acting cylinder, which is reset by contracting the transverse hydraulic cylinder 10 through the pulling force of the reset spring 15. When the control handle 7 presses the reset button, the unloading valve in the micro electric hydraulic pump station 5 opens, and under the action of the reset spring 15, the oil in the transverse hydraulic cylinder 10 returns to the micro electric hydraulic pump station 5 through the pipeline 6, thereby achieving a contraction effect.

[0031] The working principle of this embodiment is as follows: the side bearing is placed parallel to the upper surface of the assembly body 2, the side bearing body is placed between two fixed pressure blocks 8, the stretching button of the control handle 7 is pressed to compress the rubber body so that a gap is generated between the contact surface of the rubber body and the side bearing seat, so that the rubber body is separated from the side bearing seat, and the side bearing seat is manually taken out and the reset button is pressed to reset the transverse hydraulic cylinder 10, so that the rubber body can return to its natural state.

[0032] When the side bearing needs to be assembled, the side bearing body is placed between the two fixed pressure blocks 8, and the stretching button of the control handle 7 is pressed to compress the rubber body. At this time, the side bearing seat is manually nested outside the side bearing body, and then the output end of the transverse hydraulic cylinder 10 is controlled to move horizontally, so as to remove the preliminarily assembled side bearing body and side bearing seat.

[0033] The above are only preferred specific embodiments of the present invention. These specific embodiments are different implementations based on the overall concept of the present invention, and the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by a technician familiar with the technical field within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A mobile JC side bearing disassembly and assembly device suitable for large-scale railway maintenance machinery, characterized in that: include: A movable pull rod (1), an assembly body (2), a running wheel (3), a cable (4), a micro electric hydraulic pump station (5), a pipeline (6), a control handle (7), a fixed pressure block (8), a connecting plate (9), a transverse hydraulic cylinder (10), a first bolt rod (11), an adjustment fixing hole (12), a support plate (13), a second bolt rod (14), a return spring (15) and a mounting hole (16); Among them, a moving pull rod (1) is installed on one side of the assembly body (2), a running wheel (3) is installed on the lower surface of the assembly body (2), two mounting holes (16) are provided on the upper surface of the assembly body (2), and connecting plates (9) are arranged in parallel on both sides of the mounting holes (16) inside the assembly body (2), through holes are opened at relative positions on the connecting plates (9), a support plate (13) is arranged through the mounting holes (16), a fixed pressure block (8) is arranged at the top of the support plate (13), a plurality of adjustment fixing holes (12) are opened in the middle of the support plate (13), and a first bolt rod (11) passes through the through hole of the connecting plate (9) and the adjustment fixing hole (12) and cooperate with the nut, a transverse hydraulic cylinder (10) is arranged between the two support plates (13), the transverse hydraulic cylinder (10) is connected to the support plate (13) through a second bolt rod (14) and a nut, the tail ends of the two support plates (13) are connected through a reset spring (15), a micro electric hydraulic pump station (5) is installed inside the assembly body (2), the micro electric hydraulic pump station (5) is connected to the transverse hydraulic cylinder (10) through a pipeline (6), and a control handle (7) is installed on the upper surface of the assembly body (2), and the control handle (7) is connected to the micro electric hydraulic pump station (5) through a cable (4).

2. The mobile JC side bearing disassembly and assembly device for large-scale railway maintenance machinery according to claim 1 is characterized in that: The number of the fixing holes (12) is at least 3.

3. The mobile JC side bearing disassembly and assembly device applicable to large-scale railway maintenance machinery according to claim 1 is characterized in that: The micro electric hydraulic pump station (5) is connected to an external power source.

4. The mobile JC side bearing disassembly and assembly device applicable to large-scale railway maintenance machinery according to claim 1 is characterized in that: The connecting plate (9) and the assembly body (2) are fixed by welding.

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