A Dongfeng 8B type locomotive cylinder throwing tool

Abstract

The present application belongs to the technical field of internal combustion engine vehicle operation tools, in particular to a Dongfeng 8B type engine vehicle cylinder discarding tool, which comprises a sleeve, the sleeve comprises a first sleeve plate and a second sleeve plate which can be opened and closed to each other, a fastening groove is formed between the first sleeve plate and the second sleeve plate and can be sleeved in the groove of the rack, when the rack is located at the stop oil position, the fastening groove is sleeved in the groove of the rack, and the sleeve is blocked by the chuck pin, so that the rack can be kept at the stop oil position. The present application has the advantages of stably keeping the rack at the stop oil position and preventing the rack from shaking during the cylinder discarding operation.

Description

Technical Field

[0001] This invention relates to the field of operating tools for internal combustion locomotives; specifically, this invention relates to a cylinder-scraping tool for the Dongfeng 8B locomotive. Background Technology

[0002] In the daily operation of diesel locomotives, several malfunctions frequently require cylinder deactivation, such as pinholes in the fuel injection pump, oil leaks from the fuel injection pump rack, oil leaks from the high-pressure fuel lines, intake and exhaust valve malfunctions, and rocker arm malfunctions. Previously, when handling such malfunctions, operators would first remove the collet pin and then use wire to tighten the fuel injection pump rack by wrapping it around the annular groove. This method has the following drawbacks: high locomotive vibration during operation, high operational difficulty, weak wire strength leading to loosening after tightening, and reduced locomotive utilization; unstable performance and low work efficiency. Summary of the Invention

[0003] In view of this, the present invention provides a cylinder-scraping tool for the Dongfeng 8B locomotive, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objective, the present invention provides a cylinder-slinging tool for the Dongfeng 8B locomotive, comprising a sleeve. The sleeve includes a first sleeve plate and a second sleeve plate that can be opened and closed with each other. A fastening groove is formed between the first sleeve plate and the second sleeve plate, which can be fitted into the groove of the rack. When the rack is in the oil stop position, the fastening groove is fitted into the groove of the rack, and the sleeve is blocked by a chuck pin, which can keep the rack in the oil stop position.

[0005] Optionally, the Dongfeng 8B locomotive cylinder-scraping tool described above also includes:

[0006] Connecting bolts and dovetail nuts are provided between one of the same-side ends of the first and second sleeve plates for fastening the first and second sleeve plates, and are inserted between the other same-side ends of the first and second sleeve plates.

[0007] A fastening bolt is installed on the first sleeve plate, one end of which passes through the first sleeve plate and abuts against the inner wall of the groove of the rack, for locking the sleeve onto the rack.

[0008] Optionally, the Dongfeng 8B locomotive cylinder-scraping tool described above also includes:

[0009] The winding rod is rotatably mounted on the first plate and is set perpendicular to the rack. It is used to wind a wire that is fixed at one end to a component around the internal combustion engine and to fix the rack in the oil stop position by pulling force.

[0010] Optionally, the Dongfeng 8B locomotive cylinder-scraping tool described above also includes:

[0011] A plug-in tube is fixedly installed on the outer surface of the first sleeve plate, and the winding rod includes a plug-in part at the bottom end that can be inserted into the plug-in tube;

[0012] The slot, shaped like a "U", is located at the bottom of the connector and is used to secure the wire.

[0013] Optionally, the Dongfeng 8B locomotive cylinder-scraping tool described above also includes:

[0014] The winding rod also includes a rod-shaped part fixedly installed at the top of the plug-in part. The surface of the rod-shaped part is provided with inclined grooves evenly distributed along the circumferential direction, and the side wall of the inclined groove facing the center of the rod-shaped part is inclined inward at the bottom end.

[0015] The aforementioned cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0016] A rotating ring is slidably sleeved on the rod-shaped part;

[0017] The movable rod is configured as an inverted "L" shape, and multiple movable rods are equidistantly arranged in the circumferential direction of the rotating ring. The movable rod is configured to be able to move radially along the rotating ring. The end of the transverse portion of the movable rod is slidably engaged with the inclined groove. When the winding rod moves downward within the rotating ring, the inclined groove drives the movable rod to move outward.

[0018] Optionally, the Dongfeng 8B locomotive cylinder-scraping tool described above also includes:

[0019] A conical sleeve is movably fitted onto the insertion part and is positioned with its tip pointing downwards. The outer diameter of the top of the conical sleeve is compatible with the outer diameter of the circumference of the moving rod when it is located at the bottom of the inclined groove.

[0020] A fixed rod is fixedly installed on the lower surface of the rotating ring, and the conical sleeve is fixedly connected to the bottom end of the fixed rod, so that the movable rod is located between the conical sleeve and the rotating ring, and the fixed rod is always located inside the movable rod in the radial direction of the rod-shaped part.

[0021] Optionally, the Dongfeng 8B locomotive cylinder-scraping tool described above also includes:

[0022] The mounting bracket is fixedly mounted on the first set plate, and the rotating ring is rotatably mounted on the mounting bracket;

[0023] The baffle is rotatably mounted on the mounting bracket;

[0024] The first and second sets of plates are arranged vertically.

[0025] When the sleeve is fitted into the groove of the rack, the baffle is fixed, and the baffle is positioned with one end above the winding rod to limit the highest position of the winding rod.

[0026] Furthermore, after the sleeve is opened, the end of the baffle located above the winding rod can rotate upwards out of the area where the winding rod is located.

[0027] Optionally, the Dongfeng 8B locomotive cylinder-scraping tool described above also includes:

[0028] The top rod is fixedly installed on the second sleeve plate. When the sleeve is in the closed state, the top end of the top rod can support the end of the baffle away from the winding rod, so that the other end of the baffle is above the winding rod.

[0029] Optionally, the Dongfeng 8B locomotive cylinder-scraping tool described above also includes:

[0030] The anti-detachment bolt and anti-detachment threaded groove are adapted to each other. The anti-detachment bolt is rotatably installed on the end of the baffle to block the winding rod. The anti-detachment threaded groove is set at the top of the rod-shaped part. The rotation direction of the anti-detachment bolt when it turns out of the anti-detachment threaded groove is opposite to the rotation direction of the winding rod when it releases the wire.

[0031] The present invention provides a cylinder-swinging tool for Dongfeng 8B locomotives, which employs a fastening groove sleeved into the groove of a rack, and the sleeve is blocked by a chuck pin, which can keep the rack in the oil-stop position and prevent the rack from shaking during cylinder-swinging operations. Furthermore, a fastening bolt is provided on the sleeve, and the end of the fastening bolt abuts against the inner wall of the groove of the rack, which can lock the sleeve onto the rack. Attached Figure Description

[0032] The disclosure of this invention will become more apparent from the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings:

[0033] Figure 1 This is a schematic diagram of the installation structure according to Embodiment 1 of the present invention.

[0034] Figure 2 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0035] Figure 3 This is a schematic diagram of the installation structure of Embodiment 2 of the present invention.

[0036] Figure 4 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0037] Figure 5 For the present invention Figure 4 A sectional view.

[0038] Figure 6 This is a schematic diagram of the structure of the winding rod of the present invention.

[0039] Reference numerals: 1. Sleeve; 1-1. First sleeve plate; 1-2. Second sleeve plate; 2. Connecting bolt; 3. Dovetail nut; 4. Fastening bolt; 5. Winding rod; 5-1. Insertion part; 5-2. Slot; 5-3. Rod-shaped part; 5-4. Inclined groove; 5-5. Anti-loosening threaded groove; 6. Insertion sleeve; 7. Rotating ring; 8. Moving rod; 9. Conical sleeve; 9-1. Fixing rod; 10. Mounting bracket; 10-1. Baffle; 11. Top rod; 12. Anti-loosening bolt. Detailed Implementation

[0040] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0041] like Figure 1 and Figure 2 As shown, a typical embodiment of the present invention provides a cylinder-scraping tool for Dongfeng B-type locomotives, including a sleeve 1. The sleeve 1 includes a first sleeve plate 1-1 and a second sleeve plate 1-2 that can be opened and closed with each other. A fastening groove is formed between the first sleeve plate 1-1 and the second sleeve plate 1-2, which can be fitted into the groove of the rack. When the rack is in the oil stop position, it is fitted into the groove of the rack through the fastening groove, and the sleeve 1 is blocked by the chuck pin, which can keep the rack in the oil stop position.

[0042] When using Embodiment 1, first pull the collet pin out of the groove of the rack and stabilize the collet pin in the state of being detached from the groove of the rack;

[0043] Pull the rack out to the oil stop position, and put the sleeve 1 into the groove of the rack. At this time, the fastening groove is located in the groove of the rack, and the chuck pin blocks the sleeve 1, so that the rack is blocked at the oil stop position, which facilitates the cylinder throwing operation.

[0044] A cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0045] The connecting bolt 2 and the dovetail nut 3 are set between one of the same-side ends of the first sleeve plate 1-1 and the second sleeve plate 1-2 for fastening the first sleeve plate 1-1 and the second sleeve plate 1-2, and are inserted between the other same-side ends of the first sleeve plate 1-1 and the second sleeve plate 1-2.

[0046] Fastening bolt 4 is installed on the first sleeve plate 1-1. One end of the fastening bolt 4 passes through the first sleeve plate 1-1 and abuts against the inner wall of the groove of the rack, which is used to lock the sleeve 1 onto the rack.

[0047] When the rack is pulled out to the oil stop position, first open the first sleeve plate 1-1 and the second sleeve plate 1-2, then fit the fastening groove into the groove of the rack, connect the dovetail nut 3 to the connecting bolt 2, and rotate the dovetail nut 3 so that the dovetail nut 3 closes the ends of the first sleeve plate 1-1 and the second sleeve plate 1-2, so that the sleeve 1 can be fitted into the groove of the rack.

[0048] After the ends of the first sleeve plate 1-1 and the second sleeve plate 1-2 are closed, the fastening bolt 4 is inserted into the first sleeve plate 1-1 and rotated so that the end of the fastening bolt 4 abuts against the inner wall of the groove of the rack, so that the sleeve 1 is locked on the rack. At this time, the position of the fastening bolt 4 corresponds to the position of the collet pin. If the rack is reset at this time, the collet pin will block the fastening bolt 4, thereby preventing the rack from resetting and keeping the rack in the oil stop position.

[0049] like Figures 3 to 6 As shown, a cylinder-scraping tool for a Dongfeng 8B locomotive also includes:

[0050] The winding rod 5 is rotatably mounted on the first plate 1-1 and is set perpendicular to the rack. It is used to wind a wire that is fixed at one end to the components around the internal combustion engine and fix the rack in the oil stop position by pulling force.

[0051] When using Embodiment 2, first wrap the wire around the internal combustion engine components around the rack, then repeat the steps of Installing Set 1 in the groove of the rack in Embodiment 2, and then rotate the winding rod 5 so that the wire is wound up to a taut state, keeping the rack in the oil stop position.

[0052] A cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0053] The plug-in tube 6 is fixedly installed on the outer surface of the first sleeve plate 1-1, and the winding rod 5 includes a plug-in part 5-1 at the bottom end that can be inserted into the plug-in tube 6;

[0054] The slot 5-2 is U-shaped and is located at the bottom of the insertion part 5-1 to secure the wire.

[0055] Before winding the wire, place the end of the wire at the port of the insertion tube 6, align the slot 5-2 with the wire, and let the wire enter the slot 5-2;

[0056] Then press the winding rod 5 down. At this time, the winding rod 5 drives the wire to be inserted into the plug tube 6. The wire is squeezed by the slot 5-2 and the plug tube 6, shaping the wire into a "U" shape. This makes it easier for the winding rod 5 to wrap the unwound wire around the outside of the already shaped "U" wire when it rotates, preventing the wire from falling off the winding rod 5 when it is wrapped later.

[0057] A cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0058] The winding rod 5 also includes a rod-shaped part 5-3 fixedly installed at the top of the insertion part 5-1. The surface of the rod-shaped part 5-3 is provided with inclined grooves 5-4 evenly distributed along the circumferential direction, and the side wall of the inclined groove 5-4 facing the center of the rod-shaped part 5-3 is inclined inward at the bottom end.

[0059] A cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0060] Rotating ring 7 is slidably sleeved on rod-shaped part 5-3;

[0061] The movable rod 8 is configured as an inverted "L" shape, with multiple rods equidistantly arranged in the circumferential direction of the rotating ring 7. The movable rod 8 is configured to be able to move radially along the rotating ring 7. The end of the transverse part of the movable rod 8 is slidably engaged with the inclined groove 5-4. When the winding rod 5 moves downward within the rotating ring 7, the inclined groove 5-4 drives the movable rod 8 to move outward.

[0062] When the winding rod 5 is rotated, the wire is wound around one end of the internal combustion engine component, which is higher than the rack, so the wire will move upward along the winding rod 5 during winding.

[0063] When the wire is wound into the range of the moving rod 8, the winding rod 5 continues to rotate. Since the moving rod 8 is slidably installed in the inclined groove 5-4, the winding rod 5 drives the moving rod 8 to rotate synchronously. At this time, the moving rod 8 is subjected to the pulling force of the wire, which will squeeze the moving rod 8 and cause it to move.

[0064] At this time, the inclined groove 5-4 is squeezed by the moving rod 8, causing the winding rod 5 to move upward, reducing the spacing of the bottom wound wires, making the wires more tightly wound, increasing the shaping effect of the wires, making the wires more tensile, and preventing the rack from shaking when the cylinder is thrown.

[0065] A cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0066] The tapered sleeve 9 is movably sleeved on the insertion part 5-1 and is set with the tip pointing downwards. The outer diameter of the top of the tapered sleeve 9 is matched with the outer diameter of the circumference of the moving rod 8 when it is located at the bottom of the inclined groove 5-4.

[0067] The fixed rod 9-1 is fixedly installed on the lower surface of the rotating ring 7, and the conical sleeve 9 is fixedly connected to the bottom end of the fixed rod 9-1, so that the moving rod 8 is located between the conical sleeve 9 and the rotating ring 7, and the fixed rod 9-1 is always located inside the moving rod 8 in the radial direction of the rod-shaped part 5-3.

[0068] When the wire is wound upwards, it first passes through the cone sleeve 9. The cone sleeve 9 guides the wire, making it easier for the wire to be wound to enter the range of the moving rod 8.

[0069] When the wire enters the longitudinal part of the first moving rod, the winding rod 5 continues to rotate, which can drive the moving rod 8 to move and drive the winding rod 5 to rise.

[0070] Specifically, the fixing rod 9-1 contacts the winding rod 5, so that the winding rod 5 can remain stable when it rises.

[0071] A cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0072] Mounting bracket 10 is fixedly mounted on the first sleeve plate 1-1, and rotating ring 7 is rotatably mounted on mounting bracket 10;

[0073] baffle 10-1 is rotatably mounted on mounting bracket 10;

[0074] The first set of plates 1-1 and the second set of plates 1-2 are arranged vertically;

[0075] When the sleeve 1 is fitted into the groove of the rack, the baffle 10-1 is fixed and one end of the baffle 10-1 is positioned above the winding rod 5 to limit the highest position of the winding rod 5.

[0076] Furthermore, after the sleeve 1 is opened, the end of the baffle 10-1 located above the winding rod 5 can rotate upwards out of the area where the winding rod 5 is located.

[0077] When the winding rod 5 moves to the highest position, the top of the winding rod 5 contacts the bottom surface of the baffle 10-1 and is blocked by the baffle 10-1, which can keep the winding rod 5 taut on the wire rope at the specified height.

[0078] When the winding rod 5 is rotated, the rotating ring 7 will rotate on the mounting bracket 10, which makes it easier for the moving rod 8 to wind the wire. At the same time, the rotating ring 7 will limit the winding height of the wire, so that the spacing of the wires will be smaller when the winding rod 5 rises, which will increase the shaping effect and prevent the wire from falling off.

[0079] A cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0080] The top rod 11 is fixedly installed on the second sleeve plate 1-2. When the sleeve 1 is in the closed state, the top end of the top rod 11 can support the end of the baffle 10-1 away from the winding rod 5, so that the other end of the baffle 10-1 is above the winding rod 5.

[0081] When the second plate 1-2 is closed with the first plate 1-1, the top rod 11 presses against the bottom surface of the baffle 10-1 away from the winding rod 5, so that the baffle 10-1 is restricted by the top rod 11 and the highest position that the winding rod 5 can rise is limited. At this time, a stable support can be formed between the top rod 11, the winding rod 5 and the baffle 10-1.

[0082] When it is necessary to disassemble the device, open the ends of the second sleeve plate 1-2 and the first sleeve plate 1-1, so that the top rod 11 is away from the baffle 10-1, so that the winding rod 5 can be pulled out from the rotating ring 7, and the device can be disassembled as a whole.

[0083] At this time, the wire is shaped and can maintain the coiled state. When the cylinder is thrown again, simply reinsert the winding rod 5 into the rotating ring 7 and connect the part of the wire that is shaped into a "U" shape with the slot 5-2.

[0084] Then close the first set plate 1-1 and the second set plate 1-2 to perform the cylinder throwing operation. If the wire is not taut at this time, press down the winding rod 5 to make the moving rod 8 drive the wire to expand outward, so that the wire is taut at this point.

[0085] A cylinder-scraping tool for the Dongfeng 8B locomotive also includes:

[0086] The anti-detachment bolt 12 and the anti-detachment threaded groove 5-5 are adapted to each other. The anti-detachment bolt 12 is rotatably installed on the end of the baffle 10-1 to block the winding rod 5. The anti-detachment threaded groove 5-5 is set at the top of the rod-shaped part 5-3, and the rotation direction of the anti-detachment bolt 12 when it rotates out of the anti-detachment threaded groove 5-5 is opposite to the rotation direction of the winding rod 5 when it releases the wire.

[0087] When the wire is taut, the end of the winding rod 5 contacts the bottom surface of the baffle 10-1, the anti-detachment thread groove 5-5 corresponds to the anti-detachment bolt 12, and then the anti-detachment bolt 12 is rotated to connect the anti-detachment bolt 12 to the winding rod 5, so that the winding rod 5 is completely locked in the state of taut wire.

[0088] Compared to Embodiment 1, Embodiment 2 has the advantage of keeping the rack in the oil stop position, avoiding errors during processing that prevent the chuck pin from completely blocking the sleeve 1, thus ensuring that the rack is still limited during cylinder slinging.

[0089] The technical scope of this invention is not limited to the contents of the above specification. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the scope of this invention.

Claims

1. A tool for decoking a Dongfeng 8B locomotive, characterized in that, The tool comprises a set (1) including a first set plate (1-1) and a second set plate (1-2) which can be opened and closed to each other, a fastening groove is formed between the first set plate (1-1) and the second set plate (1-2) and can be sleeved in the groove of the rack, when the rack is located at the fuel cut-off position, the set (1) is sleeved in the groove of the rack through the fastening groove and is blocked by the collet pin, so that the rack can be kept at the fuel cut-off position; A winding rod (5) is rotatably installed on the first set plate (1-1) and is perpendicular to the rack, is used for winding a wire which is fixed at one end on the surrounding part of the internal combustion engine, and fixes the rack at the fuel cut-off position through the pulling force; A plug-in barrel (6) is fixedly installed on the outer surface of the first set plate (1-1), and the winding rod (5) comprises a plug-in part (5-1) which can be inserted into the plug-in barrel (6) at the bottom end; A clamping groove (5-2) in the shape of "U" is arranged at the bottom end of the plug-in part (5-1) and is used for clamping the wire.

2. A tool for removing the cylinder of a Dongfeng 8B type locomotive according to claim 1, characterized in that, Further comprising: A connecting bolt (2) and a dovetail nut (3) are arranged between the same side end of the first set plate (1-1) and the second set plate (1-2) and are used for fastening the first set plate (1-1) and the second set plate (1-2) and inserting between the other same side end of the first set plate (1-1) and the second set plate (1-2); A fastening bolt (4) is installed on the first set plate (1-1), one end of the fastening bolt (4) penetrates through the first set plate (1-1) and abuts against the inner wall of the groove of the rack, and is used for locking the set (1) on the rack.

3. A tool for removing the cylinder of a Dongfeng 8B locomotive as claimed in claim 1, characterized in that, Further comprising: The winding rod (5) further comprises a rod-shaped part (5-3) which is fixedly installed at the top end of the plug-in part (5-1), the surface of the rod-shaped part (5-3) is provided with inclined grooves (5-4) which are equidistantly distributed in the circumferential direction, and one side wall of the inclined groove (5-4) which is directed to the center of the rod-shaped part (5-3) is in a state of being inclined inward at the bottom end; The tool further comprises: A rotating ring (7) is slidably sleeved on the rod-shaped part (5-3); A plurality of moving rods (8) are arranged in the shape of inverted "L" and are equidistantly arranged in the circumferential direction of the rotating ring (7), the moving rods (8) are arranged to be able to displace in the radial direction of the rotating ring (7), the end of the horizontal part of the moving rod (8) is slidably connected with the inclined groove (5-4), and when the winding rod (5) is displaced downward in the rotating ring (7), the inclined groove (5-4) drives the moving rod (8) to displace outward.

4. A tool for jacking the cylinder of a DF8B locomotive as claimed in claim 3, characterized in that, Further comprising: A tapered sleeve (9) is movably sleeved on the plug-in part (5-1) and is arranged in a state of the tip pointing downward, and the outer diameter of the top end of the tapered sleeve (9) is matched with the outer diameter of the circle in which the moving rod (8) is located at the bottom end of the inclined groove (5-4); A fixed rod (9-1) is fixedly arranged on the lower surface of the rotating ring (7), the tapered sleeve (9) is fixedly connected to the bottom end of the fixed rod (9-1), so that the moving rod (8) is located between the tapered sleeve (9) and the rotating ring (7), and the fixed rod (9-1) is always located on the inner side of the moving rod (8) in the radial direction of the rod-shaped part (5-3).

5. A tool for jacking the cylinder of a Type 8B locomotive as defined in claim 4, wherein Further comprising: The mounting frame (10) is fixedly mounted on the first sleeve plate (1-1), and the rotating ring (7) is rotatably mounted on the mounting frame (10); The baffle (10-1) is rotatably mounted on the mounting frame (10); The first sleeve plate (1-1) and the second sleeve plate (1-2) are arranged in an up-down mode; When the sleeve device (1) is sleeved in the groove of the rack, the baffle (10-1) is fixed, and the baffle (10-1) is in a state that one end is located above the winding rod (5), for limiting the highest position of the winding rod (5); And when the sleeve device (1) is opened, the end of the baffle (10-1) above the winding rod (5) can be turned out of the area where the winding rod (5) is located upwards.

6. A tool for jacking the cylinder of a Type 8B locomotive as defined in claim 5, wherein Further comprising: The top rod (11) is fixedly mounted on the second sleeve plate (1-2), and when the sleeve device (1) is in a closed state, the top end of the top rod (11) can support one end of the baffle (10-1) away from the winding rod (5), so that the other end of the baffle (10-1) is located above the winding rod (5).

7. A tool for jacking the cylinder of a Dongfeng 8B type locomotive as claimed in claim 5, characterized in that, Further comprising: The matched anti-loose bolt (12) and anti-loose threaded groove (5-5) are provided, the anti-loose bolt (12) is rotatably mounted on the baffle (10-1) for blocking the end of the winding rod (5), the anti-loose threaded groove (5-5) is arranged at the top end of the rod-shaped part (5-3), and the rotation direction of the anti-loose bolt (12) when turning out of the anti-loose threaded groove (5-5) is opposite to the rotation direction of the winding rod (5) when releasing the iron wire.

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