Railway wagon ball core type cock disassembling device

Abstract

The utility model discloses a railway wagon ball core type cock disassembling device which comprises an operation table, a support is arranged on the operation table, a telescopic mechanism is installed on the top of the support, the telescopic direction of the telescopic mechanism is vertically downward, and the telescopic mechanism is used for pushing a through pin of a valve core out of a gland. A positioning seat is arranged on the operation table under the telescopic mechanism and is used for positioning the position of the cock; the positioning seat is provided with a cock clamp, the cock clamp is used for supporting and limiting a cock, and the cock clamp comprises an angle cock clamp and a cutout cock clamp. The angle cock is supported and limited through the angle cock clamp, the cutout cock clamp is sleeved with the angle cock clamp to support and limit the cutout cock, the hydraulic cylinder of the telescopic mechanism pushes the valve element penetrating pin of the cock to be withdrawn and disassembled, and mechanical disassembly of the angle cock and the cutout cock valve element penetrating pin is achieved. The damage degree of angle cock and cutout cock accessories is reduced, the labor intensity of workers is reduced, and the danger coefficient of posts is reduced.

Description

Technical Field

[0001] This utility model relates to the field of disassembly tooling technology, and in particular to a disassembly device for a ball-type plug valve of a railway freight car. Background Technology

[0002] Currently, the ball-type valves commonly used in my country's railway vehicles include angle valves and cut-off valves. Angle valves are installed at both ends of the main brake pipe to open or close the passage between the main pipe and the hose, facilitating the closure of the air passage and the safe coupling and uncoupling of locomotives and cars. Cut-off valves are installed in front of the centrifugal dust collector on the brake branch pipe. When a car in a train needs to stop its brakes due to special circumstances of loading cargo or during train maintenance, the cut-off valve of that car is closed to cut off the compressed air passage between the car's brakes and the main brake pipe. At the same time, the compressed air in the auxiliary air cylinder and the brake cylinder is discharged, releasing the brakes and facilitating safe operation by maintenance personnel.

[0003] The angle-bending plug 7 and the cut-off plug 8 have similar structures, such as... Figure 1 As shown, it mainly consists of valve body 71, valve core 72, pressure cap 73 and handle 74. Valve core 72 and pressure cap 73 are connected by a through pin 75 and are interference fit.

[0004] When our section inspects and repairs angle stop valves and cut-off valves, it is necessary to remove the pins and disassemble the valve cores for inspection. Due to the lack of specialized removal tools, workers must clamp the angle stop valves and cut-off valves in pliers, aim a hammer at the pins, and then strike the hammer with two hammers to remove the pins. This primitive method not only damages the parts and is inefficient, but also requires a great deal of physical strength from the operators. If the hammer is not held firmly, the hammer could strike the operator's hand, posing a high risk of injury.

[0005] In the existing disassembly device, such as the Chinese utility model patent with the patent number CN201020515454.X discloses a disc type part dismounting device, which comprises a frame, a bracket, a clamping plate and a hydraulic jack, characterized in that the frame is formed by a vertical column, a crossbeam and a base, the base is provided with leveling screws, the vertical column is provided with a pulley at the top end, one end of a steel wire rope is connected with a heavy hammer, the other end of the steel wire rope is connected with the bracket through the pulley, the vertical column is provided with a support in the middle for supporting the clamping plate, the bracket is provided with a cylindrical sleeve at the top for placing the hydraulic jack, and is provided with a cylindrical sleeve at the bottom fixed with a pressing pin through a shaft pin, the two ends of the bracket are embedded with the vertical column and can slide up and down along the edge of the vertical column, and the central hole of the clamping plate is matched with the shaft of the disc type part to be dismounted for use. If the device is used to disassemble the ball core type plug valve, the following defects still exist: 1. The bottom of the gland of the angle plug valve and the cut-off plug valve has an annular protruding structure, and the diameters of the annular protrusions of the angle plug valve and the cut-off plug valve are different, and the clamping plate of the device cannot position and support the angle plug valve and the cut-off plug valve; 2. The valve core and the penetrating pin of the angle plug valve and the cut-off plug valve after disassembly have no storage place, and the valve core and the penetrating pin of the two kinds of plug valves are easy to mix together and difficult to distinguish, which affects the assembly after the maintenance is completed. Utility model content

[0006] The technical problem to be solved by the utility model lies in overcoming the defects of the prior art, and providing a railway freight car ball core type plug valve disassembly device capable of dismounting the valve core of the angle plug valve and the cut-off plug valve.

[0007] The utility model discloses the following technical scheme:

[0008] A railway freight car ball core type plug valve disassembly device, comprising an operation table 1, further comprising:

[0009] A support 2 is arranged on the operation table 1 and used for supporting a telescopic mechanism 3;

[0010] The telescopic mechanism 3 is installed at the top of the support 2 and vertically downward in the telescopic direction, and is used for pushing the penetrating pin 75 of the valve core 72 out of the gland 73;

[0011] A positioning seat 4 is arranged on the operation table 1 below the telescopic mechanism 3 and used for positioning the plug valve position;

[0012] A plug valve fixture 5 is arranged on the positioning seat 4 and used for supporting and limiting the plug valve.

[0013] Further, the positioning seat 4 is a cylindrical structure with an open front end, the positioning seat 4 is provided with a sunken table 41 at the top, and the plug valve fixture 5 is arranged on the sunken table 41.

[0014] Further, the plug valve fixture 5 comprises an angle plug valve fixture 51 and a cut-off plug valve fixture 52, the angle plug valve fixture 51 is used for supporting and positioning the angle plug valve 7, and the cut-off plug valve fixture 52 is used for supporting and positioning the cut-off plug valve 8. Further, the plug valve fixture 5 comprises an angle plug valve fixture 51 and a cut-off plug valve fixture 52, the angle plug valve fixture 51 is used for supporting and positioning the angle plug valve 7, and the cut-off plug valve fixture 52 is used for supporting and positioning the cut-off plug valve 8.

[0015] Further, the corner door clamp 51 is provided with a first positioning hole 511 in the middle part, which is matched with the annular protrusion on the bottom of the cover 73 of the corner door 7.

[0016] Further, the cut-off door clamp 52 is provided with a front-end open groove 521 in the middle part, and the groove 521 is provided with a second positioning hole 522 in the middle part, which is matched with the annular protrusion on the bottom of the cover 73 of the cut-off door 8.

[0017] Further, the second positioning hole 522 of the cut-off door clamp 52 is provided with an annular boss 523 at the edge of the bottom, and the outer diameter of the boss 523 is matched with the inner diameter of the first positioning hole 511 of the corner door clamp 51.

[0018] Further, the operation table 1 is provided with a recycling rack 6, and a plurality of insertion holes 61 are arranged on the recycling rack 6.

[0019] Further, the telescopic mechanism 3 comprises:

[0020] The hydraulic pump station 31 is arranged at the back of the support 2.

[0021] The hydraulic cylinder 32 is arranged at the top of the support 2 and is connected with the hydraulic pump station 31 through a high-pressure pipeline.

[0022] The control panel 33 is arranged on the operation table 1 and is electrically connected with the hydraulic pump station 31.

[0023] Further, the telescopic rod of the hydraulic cylinder 32 is provided with a pressing rod 321 at the front end, and the diameter of the pressing rod 321 is smaller than the diameter of the penetrating pin 75 on the top of the valve core 72 of the corner door 7 and the cut-off door 8.

[0024] Further, the control panel 33 is provided with a start-stop button and a speed adjusting knob.

[0025] The working principle of the utility model:

[0026] The utility model discloses a support 2 supports telescopic mechanism 3, and telescopic mechanism 3 is as power component, and through the locating seat 4 on the operation table 1 directly below telescopic mechanism 3, the space is left for the disengagement of valve core 72 and through pin 75 to overhead angle cock 7 and cut-off cock 8, and the annular protrusion of the bottom of angle cock gland 73 is limited in the first locating through -hole 511 of the middle part of angle cock fixture 51, and the position of through pin 75 in the middle part of angle cock gland 73 is ensured to be aligned with the position of pressure rod 321, and the cut-off cock fixture 52 on angle cock fixture 51 supports cut-off cock 8, and the annular boss 523 on the bottom surface of cut-off cock fixture 52 is clamped into the first locating through -hole 511 to limit cut-off cock fixture 52, and the second locating through -hole 522 in the middle part of cut-off cock fixture 52 is ensured to be aligned with the position of pressure rod 321, and the position of cut-off cock gland 73 is positioned through the sink groove 521 in the middle part of cut-off cock fixture 52, and the position of the annular protrusion of the bottom of cut-off cock gland 73 is limited through the second locating through -hole 522 in the middle part of sink groove 521, and the position of through pin 75 in the middle part of cut-off cock gland 73 is ensured to be aligned with the position of pressure rod 321.

[0027] After telescopic mechanism 3 extends downwards, telescopic rod drives pressure rod 321 to move downwards, and after the bottom end of pressure rod 321 contacts through pin 75, pushes through pin 75 out of the hole in gland 73 downwards, and the disassembly of angle cock gland 73 and through pin 75 of cut-off cock 8 is completed, and after disassembly, through pin 75 and valve core 72 are inserted into the insertion hole 61 of recycling rack 6 on operation table 1 and are stored.

[0028] The utility model discloses a support 2 supports telescopic mechanism 3, and telescopic mechanism 3 is as power component, and through the locating seat 4 on the operation table 1 directly below telescopic mechanism 3, the space is left for the disengagement of valve core 72 and through pin 75 to overhead angle cock 7 and cut-off cock 8, and the annular protrusion of the bottom of angle cock gland 73 is limited in the first locating through -hole 511 of the middle part of angle cock fixture 51, and the position of through pin 75 in the middle part of angle cock gland 73 is ensured to be aligned with the position of pressure rod 321, and the cut-off cock fixture 52 on angle cock fixture 51 supports cut-off cock 8, and the annular boss 523 on the bottom surface of cut-off cock fixture 52 is clamped into the first locating through -hole 511 to limit cut-off cock fixture 52, and the second locating through -hole 522 in the middle part of cut-off cock fixture 52 is ensured to be aligned with the position of pressure rod 321, and the position of cut-off cock gland 73 is positioned through the sink groove 521 in the middle part of cut-off cock fixture 52, and the position of the annular protrusion of the bottom of cut-off cock gland 73 is limited through the second locating through -hole 522 in the middle part of sink groove 521, and the position of through pin 75 in the middle part of cut-off cock gland 73 is ensured to be aligned with the position of pressure rod 321.

[0029] The utility model discloses a support 2 supports telescopic mechanism 3, and telescopic mechanism 3 is as power component, and through the locating seat 4 on the operation table 1 directly below telescopic mechanism 3, the space is left for the disengagement of valve core 72 and through pin 75 to overhead angle cock 7 and cut-off cock 8, and the annular protrusion of the bottom of angle cock gland 73 is limited in the first locating through -hole 511 of the middle part of angle cock fixture 51, and the position of through pin 75 in the middle part of angle cock gland 73 is ensured to be aligned with the position of pressure rod 321, and the cut-off cock fixture 52 on angle cock fixture 51 supports cut-off cock 8, and the annular boss 523 on the bottom surface of cut-off cock fixture 52 is clamped into the first locating through -hole 511 to limit cut-off cock fixture 52, and the second locating through -hole 522 in the middle part of cut-off cock fixture 52 is ensured to be aligned with the position of pressure rod 321, and the position of cut-off cock gland 73 is positioned through the sink groove 521 in the middle part of cut-off cock fixture 52, and the position of the annular protrusion of the bottom of cut-off cock gland 73 is limited through the second locating through -hole 522 in the middle part of sink groove 521, and the position of through pin 75 in the middle part of cut-off cock gland 73 is ensured to be aligned with the position of pressure rod 321.

[0030] The utility model discloses a support 2 supports telescopic mechanism 3, and telescopic mechanism 3 is as power component, and through the locating seat 4 on the operation table 1 directly below telescopic mechanism 3, the space is left for the disengagement of valve core 72 and through pin 75 to overhead angle cock 7 and cut-off cock 8, and the annular protrusion of the bottom of angle cock gland 73 is limited in the first locating through -hole 511 of the middle part of angle cock fixture 51, and the position of through pin 75 in the middle part of angle cock gland 73 is ensured to be aligned with the position of pressure rod 321, and the cut-off cock fixture 52 on angle cock fixture 51 supports cut-off cock 8, and the annular boss 523 on the bottom surface of cut-off cock fixture 52 is clamped into the first locating through -hole 511 to limit cut-off cock fixture 52, and the second locating through -hole 522 in the middle part of cut-off cock fixture 52 is ensured to be aligned with the position of pressure rod 321, and the position of cut-off cock gland 73 is positioned through the sink groove 521 in the middle part of cut-off cock fixture 52, and the position of the annular protrusion of the bottom of cut-off cock gland 73 is limited through the second locating through -hole 522 in the middle part of sink groove 521, and the position of through pin 75 in the middle part of cut-off cock gland 73 is ensured to be aligned with the position of pressure rod 321.

[0031] The utility model discloses a support limiting corner plug door 7 through corner plug door fixture 51, through the support limiting intercept plug door 8 of intercept plug door fixture 52 set into corner plug door fixture 51, can realize the decomposition of two plug valve core 72 through pin 75 of corner plug door 7 and intercept plug door 8, other equipment that needs to be disassembled can be replaced positioning seat 4 and plug door fixture 5 after the tooling is made according to the equipment characteristics, and the versatility is stronger.

[0032] The utility model discloses through the storage of the through pin 75 and valve core 72 after the decomposition of recovery frame 6, prevent two kinds of plug valve core and through pin mix together, it is difficult to distinguish, help the assembly work when taking through pin 75 and valve core 72 after overhaul is completed. DRAWINGS

[0033] Figure 1 It is the exploded view of corner plug door;

[0034] Figure 2 It is the three-dimensional structure schematic diagram of the utility model;

[0035] Figure 3 It is the structure schematic diagram of support, telescopic mechanism, positioning seat of the utility model;

[0036] Figure 4 It is the front view of corner plug door decomposition of the utility model;

[0037] Figure 5 It is the front view of the utility model Figure 4 A-A section view;

[0038] Figure 6 It is the exploded view of corner plug door and corner plug door fixture of the utility model;

[0039] Figure 7 It is the exploded view of positioning seat and plug door fixture of the utility model;

[0040] Figure 8 It is the use state solid drawing of intercept plug door decomposition of the utility model;

[0041] Figure 9 It is the front view of the utility model Figure 8 ;

[0042] Figure 10 It is the section view of B-B in the utility model Figure 9 ;

[0043] Figure 11 It is the exploded view of intercept plug door and intercept plug door fixture of the utility model.

[0044] Mark in drawing:

[0045] 1-operation platform;

[0046] 2-Staff;

[0047] 3-Telescopic mechanism, 31-Hydraulic pump station, 32-Hydraulic cylinder, 321-Pressure rod, 33-Control panel;

[0048] 4-Positioning seat, 41-Sunken platform;

[0049] 5-Plug clamp, 51-Angle plug clamp, 511-First positioning through hole, 52-Cut-off plug clamp, 521-Counterside groove, 522-Second positioning through hole, 523-Boss;

[0050] 6-Recycling rack, 61-Socket;

[0051] 7-Angle plug, 71-Valve body, 72-Valve core, 73-Glander cap, 74-Handle, 75-Pin; 8-Stop plug. Detailed Implementation

[0052] To enable those skilled in the art to better understand the technical solution of this utility model, the specific embodiments are described in detail below with reference to the accompanying drawings.

[0053] Example 1:

[0054] like Figures 2-11 As shown, a ball-type plug disassembly device for railway freight cars includes an operating table 1, a bracket 2, a telescopic mechanism 3, a positioning seat 4, a plug clamp 5, and a recovery rack 6.

[0055] In an embodiment, such as Figure 2 , 3 As shown in Figure 8, the bracket 2 consists of a base plate, two inverted "L"-shaped plates and a mounting plate. The two inverted "L"-shaped plates are vertically welded to the middle of the base plate, and the mounting plate is welded between the tops of the two "L"-shaped plates. The hydraulic cylinder 32 of the telescopic mechanism 3 is mounted on the mounting plate. A storage cabinet is provided below the operating table 1. The storage cabinet can store the parts and disassembly tools of the angle stopper 7 and the cutting stopper 8.

[0056] In an embodiment, such as Figure 3 , 4 As shown in Figures 8 and 9, the telescopic mechanism 3 includes a hydraulic pump station 31, a hydraulic cylinder 32, and a control panel 33. The hydraulic pump station 31 is located behind the support 2 and is used to drive the hydraulic cylinder 32 to extend and retract. The hydraulic cylinder 32 is located on the top of the support 2, with its extension and retraction direction vertically downward. It is connected to the hydraulic pump station 31 through a high-pressure pipeline and is used to push the valve core 72 out of the pressure cap 73. The control panel 33 is located on the operating table 1 and is electrically connected to the hydraulic pump station 31. The control panel 33 includes a start / stop button and a speed adjustment knob. The start / stop button is used to control the start and stop of the extension and retraction function of the hydraulic cylinder 32, and the speed adjustment knob is used to adjust the extension and retraction rate of the extension rod of the hydraulic cylinder 32.

[0057] As shown in Figure 5 , 10 , the front end of the hydraulic cylinder 32 telescopic rod is provided with a pressing rod 321, the diameter of the pressing rod 321 is smaller than the diameter of the top through pin 75 of the valve core 72 of the angle cock 7 and the cut-off cock 8, which ensures that the pressing rod 321 can extend into the hole in the middle of the gland 73. The connection between the telescopic rod of the hydraulic cylinder 32 and the pressing rod 321 is threaded connection, which may be loose after long-term use. At this time, the withdrawal pressure head will shake, and the withdrawal pressure head is easy to break. The operator needs to tighten the connection sleeve in time with the special wrench provided; therefore, the telescopic rod of the hydraulic cylinder 32 and the pressing rod 321 can be welded firmly after being tightened.

[0058] In the embodiment, as shown in Figure 3 , 7 , the positioning seat 4 is installed on the bottom plate of the support 2 directly below the telescopic mechanism 3 by bolts; the positioning seat 4 is a cylindrical structure with an open front end, which is used to suspend the angle cock 7 and the cut-off cock 8, leaving space for the valve core 72 and the through pin 75 to come out.

[0059] As shown in Figure 7 , the cock fixture 5 is placed and positioned on the sink 41 on the top of the positioning seat 4, and the sink 41 is used to bear the angle cock fixture 51 and the cut-off cock fixture 52. When the angle cock 7 is disassembled, the angle cock fixture 51 is placed on the sink 41 and pushed into position; when the cut-off cock 8 is disassembled, the cut-off cock fixture 52 is placed on the sink 41 and pushed into position.

[0060] In the embodiment, as shown in Figure 6 , 11 , the cock fixture 5 includes the angle cock fixture 51 and the cut-off cock fixture 52, the angle cock fixture 51 is used to support and position the angle cock 7, and the cut-off cock fixture 52 is used to support and position the cut-off cock 8.

[0061] As shown in Figure 6 , the first positioning through hole 511 in the middle of the angle cock fixture 51 is adapted in diameter to the diameter of the annular protrusion at the bottom of the gland 73 of the angle cock 7, and the first positioning through hole 511 is used to limit the position of the annular protrusion at the bottom of the gland 73 of the angle cock 7, ensuring that the position of the through pin 75 in the middle of the gland 73 of the angle cock 7 is aligned with the position of the pressing rod 321, and ensuring that the pressing rod 321 can accurately abut against the top of the through pin 75 after being pressed down.

[0062] As shown in Figure 11As shown, the width of the sink groove 521 in the middle of the cutoff cock fixture 52 is matched with the width of the gland 73 of the cutoff cock 8, and the sink groove 521 is used for positioning the position of the gland 73 of the cutoff cock 8; the second positioning through hole 522 in the middle of the sink groove 521 is matched with the diameter of the annular protrusion at the bottom of the gland 73 of the cutoff cock 8, and the second positioning through hole 522 is used for limiting the position of the annular protrusion at the bottom of the gland 73 of the cutoff cock 8, so as to ensure that the position of the through pin 75 in the middle of the gland 73 of the cutoff cock 8 is aligned with the position of the pressing rod 321, and the pressing rod 321 can be accurately pressed on the top of the through pin 75 after being pressed.

[0063] In the embodiment, as shown in the drawings, Figure 2 As shown, the recycling rack 6 on the operation table 1 is used for storing the disassembled through pin 75 and valve core 72, and a plurality of insertion holes 61 are arranged on the recycling rack 6, and the diameter of the insertion hole 61 is greater than the diameter of the through pin 75, so that the through pin 75 can be stored by being inverted and inserted into the insertion hole 61.

[0064] Embodiment 2:

[0065] Compared with embodiment 1, the folding angle cock fixture 51 of embodiment 2 is welded and fixed on the sink table 41 at the top of the positioning seat 4, and the edge of the second positioning through hole 522 at the bottom of the cutoff cock fixture 52 is provided with an annular boss 523, and the outer diameter of the boss 523 is matched with the inner diameter of the first positioning through hole 511 in the middle of the folding angle cock fixture 51. The first positioning through hole 511 is used for limiting the annular protrusion at the bottom surface of the folding angle cock fixture 51 or limiting the annular boss 523 of the cutoff cock fixture 52, so as to ensure that the second positioning through hole 522 in the middle of the cutoff cock fixture 52 is aligned with the position of the pressing rod 321.

[0066] Because the size of the cutoff cock 8 is smaller than the size of the folding angle cock 7 as a whole, the cutoff cock fixture 52 can be stacked on the folding angle cock fixture 51 for use. When the folding angle cock 7 is disassembled, the folding angle cock 7 is directly placed on the folding angle cock fixture 51; when the cutoff cock 8 is disassembled, the cutoff cock fixture 52 is placed on the folding angle cock fixture 51, so that the annular boss 523 is located in the first positioning through hole 511 for limiting, and then the cutoff cock 8 is placed on the cutoff cock fixture 52.

[0067] The working mode of the utility model:

[0068] When the folding angle cock 7 and the cutoff cock 8 are disassembled, the structure of embodiment 2 is taken as an example:

[0069] Step 1: first, the folding angle cock 7 and the cutoff cock 8 are classified and placed, the folding angle cock fixture 51 is fixed and welded on the positioning seat 4, and the folding angle cock 7 can be directly placed on the folding angle cock fixture 51;

[0070] Step 2: open the start-stop button on the control panel 33, control the hydraulic pump station 31 to work, the hydraulic pump station 31 controls the telescopic rod of the hydraulic cylinder 32 to stretch out, the telescopic rod drives the press rod 321 to move downwards, the bottom end of the press rod 321 contacts the through pin 75 and pushes the through pin 75 out of the hole in the gland 73 downwards, and the disassembly of the gland 73 and the through pin 75 of the angle cock 7 is completed.

[0071] Step 3: press the start-stop button to reset the telescopic rod of the hydraulic cylinder 32; remove the disassembled angle cock 7, and insert the through pin 75 and the valve core 72 into the insertion hole 61 of the recycling rack 6 for storage.

[0072] Step 4: place the undismounted angle cock 7 on the angle cock fixture 51, repeat the above steps 2 and 3 until the disassembly of the angle cock 7 to be disassembled is completed. Then place the cut-off cock fixture 52 on the angle cock fixture 51, so that the annular boss 523 is located in the first positioning hole 511 for limiting.

[0073] Step 5: place the cut-off cock 8 on the cut-off cock fixture 52, open the start-stop button on the control panel 33, control the hydraulic pump station 31 to work, the hydraulic pump station 31 controls the telescopic rod of the hydraulic cylinder 32 to stretch out, the telescopic rod drives the press rod 321 to move downwards, the bottom end of the press rod 321 contacts the through pin 75 and pushes the through pin 75 out of the hole in the gland 73 downwards, and the disassembly of the gland 73 and the through pin 75 of the cut-off cock 8 is completed.

[0074] Step 6: press the start-stop button to reset the telescopic rod of the hydraulic cylinder 32; remove the disassembled cut-off cock 8, and insert the through pin 75 and the valve core 72 into the insertion hole 61 of the recycling rack 6 for storage.

[0075] Step 7: place the undismounted cut-off cock 8 on the cut-off cock fixture 52, repeat the above steps 5 and 6 until the disassembly of the cut-off cock 8 to be disassembled is completed.

[0076] It should be noted that the technical solutions of the present application are described in detail, the principles of the present application are described, and the above working principle is only used to help understand the core idea of the present application. It should be pointed out that for ordinary skilled persons in the technical field, the present application can be improved and modified without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

[0077] The skilled in the art to which the present application belongs can make modifications or supplements to the described specific embodiments or replace them with similar ways, as long as they do not deviate from the structure of the present application or exceed the scope defined by the present claims, which belongs to the protection scope of the present application. Therefore, the protection scope of the present application patent should be subject to the appended claims.

Claims

1. A railway wagon ball core type door release device comprising an operating table (1), characterized in that, Also include: Support (2) is arranged on the operating table (1), used for supporting telescopic mechanism (3); Telescopic mechanism (3) is installed on the top of support (2), the telescopic direction is vertical downward, used for pushing the pin (75) of valve core (72) from the gland (73); Positioning seat (4) is arranged on the operating table (1) directly below telescopic mechanism (3), used for positioning the position of plug door; Plug door fixture (5) is arranged on positioning seat (4), used for supporting and limiting plug door.

2. The railway car knuckle-type draft gear decomposer of claim 1, wherein: The positioning seat (4) is a cylindrical structure with an open front end, and a sunken platform (41) is arranged on the top of the positioning seat (4), and the plug door fixture (5) is arranged on the sunken platform (41).

3. The railway car knuckle-type draft gear decomposer of claim 2, wherein: The plug door fixture (5) includes a corner plug door fixture (51) and a truncated plug door fixture (52), the corner plug door fixture (51) is used for supporting and positioning the corner plug door (7), and the truncated plug door fixture (52) is used for supporting and positioning the truncated plug door (8).

4. The railway car knuckle-type draft gear decomposer of claim 3, wherein: The corner plug door fixture (51) is provided with a first positioning through hole (511) in the middle, and the first positioning through hole (511) is matched with the annular protrusion at the bottom of the gland (73) of the corner plug door (7).

5. The railway car knuckle-type draft gear decomposer of claim 3, wherein: The truncated plug door fixture (52) is provided with a front-end open sunken groove (521) in the middle, and a second positioning through hole (522) is arranged in the middle of the sunken groove (521), and the second positioning through hole (522) is matched with the annular protrusion at the bottom of the gland (73) of the truncated plug door (8).

6. The railway car knuckle-type draft gear decomposer of claim 5, wherein: The second positioning through hole (522) edge of the truncated plug door fixture (52) bottom is provided with annular boss (523), and the outer diameter of the boss (523) is matched with the inner diameter of the first positioning through hole (511) in the middle of the corner plug door fixture (51).

7. The railway car knuckle-type draft gear decomposer of claim 1, wherein: The operating table (1) is provided with a recycling rack (6), and a plurality of jack (61) are arranged on the recycling rack (6).

8. The railway car knuckle-type draft gear decomposer of claim 1, wherein: The telescopic mechanism (3) comprises: Hydraulic pump station (31) is arranged behind support (2); Hydraulic cylinder (32) is arranged on the top of support (2) and connected with hydraulic pump station (31) through high pressure pipeline; Control panel (33) is arranged on the operating table (1) and electrically connected with hydraulic pump station (31).

9. The railway car knuckle-type draft gear decomposer of claim 8, wherein: The front end of the telescopic rod of the hydraulic cylinder (32) is provided with a pressing rod (321), and the diameter of the pressing rod (321) is smaller than the diameter of the pin (75) at the top of the valve core (72) of the corner plug door (7) and the truncated plug door (8).

10. The railway car knuckle-type draft gear decomposer of claim 8, wherein: The control panel (33) is provided with start-stop button and speed adjusting knob.

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