Diesel engine body long and deep hole diameter finishing device and using method thereof

Abstract

The diesel engine body long and deep hole diameter finishing device comprises a main body rod, a movable sleeve, a limiting assembly and a transmission assembly, the interior of the bottom end of the main body rod is hollow, the bottom end of the main body rod is rotationally connected with a connecting rod, the outer wall of the end, close to the connecting rod, of the main body rod is fixedly connected with a fixed sleeve, and one end of the main body rod is slidably connected with the movable sleeve; the main body rod is internally provided with a fixed sleeve and a movable sleeve, finishing main bodies are installed between the fixed sleeve and the movable sleeve at equal intervals, one end of the connecting rod is provided with a limiting assembly, the connecting rod is fixed in a long and deep hole of a machine body through the limiting assembly, and the main body rod is internally provided with a transmission assembly. The cross section of the finishing main body is hexagonal, and the abrasive leather and the cleaning cloth are alternately arranged on the two adjacent surfaces of the finishing main body, so that the finishing precision is improved, and the requirements of the cleanliness and the smoothness of the hole diameter of the long and deep hole of the medium-speed diesel engine body are met.

Description

Technical Field

[0001] The invention relates to the technical field of finishing of marine diesel engines, in particular to a device for finishing the diameter of long and deep holes in a diesel engine body and a method for using the device. Background Art

[0002] In the manufacturing of marine diesel engines and other machinery, there are often medium-sized and large-sized important parts such as medium-speed diesel engine bodies, and the cleanliness and smoothness of the long and deep holes on these medium-sized and large-sized important parts are very high. For example, the cleanliness and smoothness of the long and deep holes in the diesel engine body are very high.

[0003] The above method for finishing the long and deep holes of medium and large parts such as medium-speed diesel engine bodies has the following problems:

[0004] 1. Since the long and deep holes of these medium and large parts have high requirements for cleanliness and finish, the inspection requirements are strict;

[0005] 2. How to improve the cleanliness and smoothness requirements of long and deep holes through special solutions.

[0006] To this end, we propose a diesel engine body long and deep hole diameter finishing device and a method for using the same. Summary of the invention

[0007] The object of the present invention is to provide a diesel engine body long and deep hole diameter finishing device and a use method thereof, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a device for finishing the diameter of long and deep holes in a diesel engine body, comprising a main rod, a movable sleeve, a limit assembly and a transmission assembly. The interior of the bottom end of the main rod is hollow in design, and the bottom end of the main rod is rotatably connected to a connecting rod. The outer wall of one end of the main rod close to the connecting rod is fixedly connected to a fixed sleeve, and one end of the main rod is slidably connected to a movable sleeve. A finishing body is equidistantly installed between the fixed sleeve and the movable sleeve. A limit assembly is provided at one end of the connecting rod, and the connecting rod is fixed in the long and deep hole of the body through the limit assembly. A transmission assembly is provided inside the main rod, and a plurality of finishing bodies are rotated while rotating along the main rod through the transmission assembly.

[0009] Preferably, the limit assembly comprises: a limit sleeve, one end of the connecting rod is fixedly connected to the limit sleeve, the interior of the limit sleeve is hollow, the limit sleeve is slidably connected to a mushroom head, the outer wall of the limit sleeve is equidistantly provided with sliding grooves, the interior of the limit sleeve is symmetrically fixedly connected to guide rods on both sides of the sliding groove, the outer wall of the guide rod is provided with a spring, the inner wall of the sliding groove is slidably connected to a sliding rod, and the several sliding rods are tangent to the outer wall of the mushroom head, and the two sides of the sliding rod are symmetrically fixedly connected, one end of the spring is fixedly connected to the ear plate, the other end is fixedly connected to the inner wall of the limit sleeve, and the ear plate is provided with a through hole corresponding to the guide rod, the bottom end of the extruded mushroom head is squeezed, the limit sleeve starts to descend, so that the mushroom head squeezes several sliding rods, the sliding rod squeezes the spring and slides outward along the sliding groove, one end of the several sliding rods is fixed to the long and deep hole of the machine body, to ensure that the limit sleeve and the connecting rod are fixed in the long and deep hole of the machine body.

[0010] Preferably, the transmission assembly includes a driving gear, an end of the connecting rod away from the limiting sleeve is fixedly connected to the driving gear, the interior of the fixed sleeve is hollow, and the fixed sleeve is equidistantly rotatably connected to the driven gear, one end of the driven gear close to each other extends into the interior of the main rod and is meshed with the driving gear, the center of the driven gear is fixedly connected with a first connecting column, and one end of the first connecting column extends out of the fixed sleeve, and the side of the movable sleeve close to the fixed sleeve is equidistantly rotatably connected to the second connecting column, the first connecting column and the second connecting column are fixedly connected to the two ends of the finishing body, and the cross-section of the finishing body is hexagonal, and the fixed sleeve and the movable sleeve are rotated by rotating the main rod, thereby driving the several finishing bodies to rotate along the main rod, and the driving gear is fixed in the long and deep hole of the machine body under the drive of the limiting sleeve, so the driving gear does not rotate, while the several driven gears rotate at the same time due to the meshing of the driving gear, at this time, the several driven gears rotate along the main rod while they themselves rotate.

[0011] Preferably, two adjacent surfaces of the finishing body are alternately provided with sandpaper and cleaning cloth.

[0012] Preferably, a limiting groove is provided at one end of the main rod close to the movable sleeve, the inner wall of the movable sleeve is slidably connected to a limiting block, the limiting block is slidably connected to the limiting groove, and one end of the movable sleeve is threadedly connected to a bolt.

[0013] Preferably, an end of the slide rod away from the mushroom head is fixedly connected with an anti-slip pad.

[0014] Preferably, a hexagonal groove is formed at one end of the main rod away from the limiting sleeve.

[0015] Preferably, the gear ratio between the driving gear and the driven gear is 10:1.

[0016] The present invention also provides the following technical solution: a method for using a long and deep hole diameter finishing device for a diesel engine body, the steps of which are as follows:

[0017] Step 1: First, adjust the position of the movable sleeve according to the inner diameter of the long and deep hole in the diesel engine body, unscrew the bottom bolt on the movable sleeve, so that the movable sleeve is no longer restricted, and the limit block can slide along the limit groove. The design of the limit groove ensures that the movable sleeve can only move along the outer wall of the main rod and cannot rotate. At this time, the outer diameter of the finishing main body can fully contact the inner diameter of the long and deep hole in the diesel engine body, and then tighten the fixing bolt;

[0018] Step 2: At this time, the limiting sleeve at one end of the main rod is inserted downward so that the mushroom head at the bottom end of the limiting sleeve squeezes the end of the inner diameter of the long deep hole of the diesel engine body. As the main rod continues to move, the mushroom head moves relative to the limiting sleeve, and one end of several sliding rods inside the limiting sleeve is squeezed, so that the sliding rods and the ear plates cooperate to squeeze several springs. At this time, one end of several sliding rods contacts the end of the inner diameter of the long deep hole, and the anti-slip pad is used to ensure that the sliding rod and the limiting sleeve are fixed to the end of the inner diameter. At this time, when the main rod rotates, the connecting rod does not rotate together;

[0019] Step 3. Insert one end of the finishing tool into the inner wall of the hexagonal groove and rotate it at high speed. At this time, the main rod rotates together, and drives the fixed sleeve and the movable sleeve to rotate by rotating the main rod, thereby driving several finishing bodies to rotate along the main rod. The driving gear is fixed in the long and deep hole of the machine body driven by the limit sleeve, so the driving gear does not rotate, and several driven gears rotate while the driving gear is engaged. At this time, several driven gears rotate along the main rod while they themselves rotate. Because the adjacent two surfaces of the finishing body are alternately provided with sandpaper and cleaning cloth, finishing can be better achieved. In addition, the gear ratio between the driving gear and the driven gear is 10:1. Therefore, while the main rod rotates, several finishing bodies rotate quickly to achieve finishing.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] When the present invention is in use, firstly, the limiting sleeve is pressed down by the main body rod, so that the mushroom head squeezes a plurality of sliding rods, and the plurality of sliding rods squeeze the inside of the aperture to form a fixation, and then the main body rod is rotated so that a plurality of driven gears rotate along the main body rod while the main body rod itself rotates, and finally the finishing body forms self-rotation while revolving in orbit. The cross-section of the finishing body is hexagonal, and two adjacent surfaces of the finishing body are alternately provided with sandpaper and cleaning cloth, so as to improve the finishing accuracy and meet the requirements of cleanliness and smoothness of the long and deep holes of the medium-speed diesel engine body. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is one of the overall structural schematic diagrams of the present invention;

[0023] Figure 2 This is the second schematic diagram of the overall partial cross-sectional structure of the present invention;

[0024] Figure 3 It is a schematic diagram of a partial cross-sectional structure of the limiting sleeve of the present invention;

[0025] Figure 4 It is a schematic diagram of the sliding rod structure of the present invention;

[0026] Figure 5 It is a schematic diagram of the structure of the movable sleeve of the present invention.

[0027] In the figure: 1. main rod; 2. connecting rod; 3. fixed sleeve; 4. movable sleeve; 5. finishing main body; 6. limiting groove; 7. limiting block; 8. anti-slip pad; 9. hexagonal groove; 21. limiting sleeve; 22. mushroom head; 23. slide groove; 24. guide rod; 25. spring; 26. slide rod; 27. ear plate; 28. through hole; 31. driving gear; 32. driven gear; 33. first connecting column; 34. second connecting column. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-2 As shown, a long and deep hole diameter finishing device for a diesel engine body and a method for using the same include a main rod 1, a movable sleeve 4, a limit assembly and a transmission assembly. The bottom end of the main rod 1 is hollow in design. The bottom end of the main rod 1 is rotatably connected to a connecting rod 2. The outer wall of one end of the main rod 1 close to the connecting rod 2 is fixedly connected to a fixed sleeve 3. One end of the main rod 1 is slidably connected to a movable sleeve 4. A finishing body 5 is equidistantly installed between the fixed sleeve 3 and the movable sleeve 4. A limit assembly is provided at one end of the connecting rod 2. The connecting rod 2 is fixed at A transmission assembly is provided inside the main rod 1 in the long deep hole of the machine body, through which a number of finishing bodies 5 rotate along the main rod 1. Sandpaper and cleaning cloth are alternately provided on two adjacent surfaces of the finishing body 5. A limiting groove 6 is provided at one end of the main rod 1 close to the movable sleeve 4. The inner wall of the movable sleeve 4 is slidably connected to a limiting block 7. The limiting block 7 is slidably connected to the limiting groove 6. A bolt is threadedly connected to one end of the movable sleeve 4. An inner hexagonal groove 9 is provided at the end of the main rod 1 away from the limiting sleeve 21.

[0030] See also Figure 3-4As shown, the limit assembly includes: a limit sleeve 21, one end of the connecting rod 2 is fixedly connected to the limit sleeve 21, the limit sleeve 21 is hollow in design, a mushroom head 22 is slidably connected to the limit sleeve 21, and a slide groove 23 is equidistantly provided on the outer wall of the limit sleeve 21. The limit sleeve 21 has guide rods 24 symmetrically fixedly connected on both sides of the slide groove 23. The outer wall of the guide rod 24 is provided with a spring 25. The inner wall of the slide groove 23 is slidably connected to a slide rod 26. The slide rods 26 are tangent to the outer wall of the mushroom head 22. The slide rods 26 are symmetrically fixedly connected to the ear plates 27 on both sides. The springs 25 are provided on the outer wall of the guide rods 24. One end of the ear plate 27 of 25 is fixedly connected, and the other end is fixedly connected to the inner wall of the limiting sleeve 21, and a through hole 28 corresponding to the guide rod 24 is opened on the ear plate 27. The bottom end of the extruded mushroom head 22 is squeezed, and the limiting sleeve 21 begins to descend so that the mushroom head 22 squeezes a plurality of sliding rods 26. The sliding rods 26 squeeze the spring 25 and slide outward along the slide groove 23. One end of the plurality of sliding rods 26 is fixed to the long and deep holes of the body to ensure that the limiting sleeve 21 and the connecting rod 2 are fixed in the long and deep holes of the body. The end of the sliding rod 26 away from the mushroom head 22 is fixedly connected with an anti-slip pad 8.

[0031] See also Figure 1-2 As shown, the transmission assembly includes a driving gear 31, one end of the connecting rod 2 away from the limiting sleeve 21 is fixedly connected to the driving gear 31, the interior of the fixed sleeve 3 is hollow, and the fixed sleeve 3 is equidistantly rotatably connected to the driven gear 32, and the ends of the driven gears 32 close to each other extend into the main rod 1, and are all meshed with the driving gear 31, the center of the driven gear 32 is fixedly connected to the first connecting column 33, and one end of the first connecting column 33 extends out of the fixed sleeve 3, and the movable sleeve 4 is equidistantly rotatably connected to the second connecting column 34 on the side close to the fixed sleeve 3, and the first connecting column 33 and the second connecting column 34 are connected. The two ends of the finishing body 5 are fixedly connected therebetween, and the cross-section of the finishing body 5 is hexagonal. The fixed sleeve 3 and the movable sleeve 4 are rotated by rotating the main rod 1, thereby driving the several finishing bodies 5 to rotate along the main rod 1. The driving gear 31 is fixed in the long and deep hole of the machine body driven by the limiting sleeve 21, so the driving gear 31 does not rotate, and the several driven gears 32 rotate while the driving gear 31 is engaged. At this time, the several driven gears 32 rotate along the main rod 1 while rotating themselves, and the gear ratio between the driving gear 31 and the driven gear 32 is 10:1.

[0032] See also Figure 1-5 As shown, a method for using a long and deep hole diameter finishing device for a diesel engine body, the steps are as follows:

[0033] Step 1: First, adjust the position of the movable sleeve 4 according to the inner diameter of the long and deep hole in the diesel engine body, unscrew the bottom bolts on the movable sleeve 4, so that the movable sleeve 4 is no longer restricted, so that the limit block 7 can slide along the limit groove 6. The design of the limit groove 6 ensures that the movable sleeve 4 can only move along the outer wall of the main rod 1 and cannot rotate. At this time, the outer diameter of the finishing body 5 can fully contact the inner diameter of the long and deep hole in the diesel engine body, and then tighten the fixing bolts;

[0034] Step 2: At this time, the limiting sleeve 21 at one end of the main rod 1 is inserted downward so that the mushroom head 22 at the bottom end of the limiting sleeve 21 squeezes the end of the inner diameter of the long deep hole of the diesel engine body. As the main rod 1 continues to move, the mushroom head 22 moves relative to the limiting sleeve 21, and one end of a plurality of sliding rods 26 inside the limiting sleeve 21 is squeezed, so that the sliding rods 26 cooperate with the ear plates 27 to squeeze a plurality of springs 25. At this time, one end of a plurality of sliding rods 26 contacts the end of the inner diameter of the long deep hole, and the anti-slip pad 8 is used to ensure that the sliding rods 26 and the limiting sleeve 21 are fixed to the inner diameter end. At this time, when the main rod 1 rotates, the connecting rod 2 does not rotate together;

[0035] Step 3, insert one end of the finishing tool into the inner wall of the hexagonal groove 9 and rotate it at high speed, at this time the main rod 1 rotates together, and drives the fixed sleeve 3 and the movable sleeve 4 to rotate by rotating the main rod 1, thereby driving a number of finishing bodies 5 to rotate along the main rod 1, the driving gear 31 is fixed in the long and deep hole of the machine body driven by the limit sleeve 21, so the driving gear 31 does not rotate, and a number of driven gears 32 rotate while the driving gear 31 is engaged, at this time, a number of driven gears 32 rotate along the main rod 1 while rotating themselves, because the adjacent two surfaces of the finishing body 5 are alternately provided with sandpaper and cleaning cloth, so the finishing can be better achieved, and the gear ratio between the driving gear 31 and the driven gear 32 is 10:1, so when the main rod 1 rotates, a number of finishing bodies 5 quickly rotate on their own to achieve finishing.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A diesel engine body long and deep hole diameter finishing device, characterized in that: include: The main body rod (1) has a hollow interior at the bottom end thereof, the bottom end of the main body rod (1) is rotatably connected to a connecting rod (2), and a fixing sleeve (3) is fixedly connected to the outer wall of one end of the main body rod (1) close to the connecting rod (2); A movable sleeve (4), one end of the main rod (1) is slidably connected with the movable sleeve (4), and a finishing body (5) is equidistantly installed between the fixed sleeve (3) and the movable sleeve (4); A limiting assembly, wherein one end of the connecting rod (2) is provided with a limiting assembly, and the connecting rod (2) is fixed in the long deep hole of the machine body by means of the limiting assembly; A transmission assembly is provided inside the main body rod (1), and the transmission assembly enables the plurality of finishing bodies (5) to rotate along the main body rod (1) while rotating.

2. A diesel engine body long and deep hole diameter finishing device according to claim 1, characterized in that: The limit assembly comprises: a limit sleeve (21), one end of the connecting rod (2) is fixedly connected to the limit sleeve (21), the interior of the limit sleeve (21) is hollow, a mushroom head (22) is slidably connected to the interior of the limit sleeve (21), a sliding groove (23) is equidistantly provided on the outer wall of the limit sleeve (21), guide rods (24) are symmetrically fixedly connected to the interior of the limit sleeve (21) on both sides of the sliding groove (23), a spring (25) is sleeved on the outer wall of the guide rod (24), a sliding rod (26) is slidably connected to the inner wall of the sliding groove (23), a plurality of sliding rods (26) are tangent to the outer wall of the mushroom head (22), and the two sides of the sliding rod (26) are opposite to each other. The spring (25) is fixedly connected with an ear plate (27). One end of the spring (25) is fixedly connected with the ear plate (27), and the other end is fixedly connected with the inner wall of the limiting sleeve (21). A through hole (28) corresponding to the guide rod (24) is opened on the ear plate (27). The bottom end of the extruded mushroom head (22) is squeezed, and the limiting sleeve (21) begins to descend so that the mushroom head (22) squeezes a plurality of slide bars (26). The slide bars (26) squeeze the spring (25) and slide outward along the slide groove (23). One end of the plurality of slide bars (26) is fixed with the long and deep hole of the machine body, so as to ensure that the limiting sleeve (21) and the connecting rod (2) are fixed in the long and deep hole of the machine body.

3. A diesel engine body long and deep hole diameter finishing device according to claim 2, characterized in that: The transmission assembly comprises a driving gear (31), one end of the connecting rod (2) away from the limiting sleeve (21) is fixedly connected to the driving gear (31), the interior of the fixed sleeve (3) is hollow, and the interior of the fixed sleeve (3) is equidistantly connected to a driven gear (32), one end of a plurality of driven gears (32) close to each other extends into the interior of the main rod (1), and all are meshed and connected with the driving gear (31), the center of the driven gear (32) is fixedly connected to a first connecting column (33), and one end of the first connecting column (33) extends out of the fixed sleeve (3), and the movable sleeve (4) is equidistantly connected to a second connecting column (34) on a side close to the fixed sleeve (3), and the first The connecting column (33) and the second connecting column (34) are fixedly connected to the two ends of the finishing body (5), and the cross section of the finishing body (5) is hexagonal. By rotating the main rod (1), the fixed sleeve (3) and the movable sleeve (4) are rotated, thereby driving the plurality of finishing bodies (5) to rotate along the main rod (1). The driving gear (31) is fixed in the long and deep hole of the machine body under the drive of the limiting sleeve (21), so that the driving gear (31) does not rotate, while the plurality of driven gears (32) are meshed with the driving gear (31) while rotating. At this time, the plurality of driven gears (32) rotate along the main rod (1) and also rotate themselves.

4. A diesel engine body long and deep hole diameter finishing device according to claim 3, characterized in that: Two adjacent surfaces of the finishing body (5) are alternately provided with sandpaper and cleaning cloth.

5. A diesel engine body long and deep hole diameter finishing device according to claim 3, characterized in that: A limiting groove (6) is provided at one end of the main rod (1) close to the movable sleeve (4); a limiting block (7) is slidably connected to the inner wall of the movable sleeve (4); the limiting block (7) is slidably connected to the limiting groove (6); and a bolt is threadedly connected to one end of the movable sleeve (4).

6. A diesel engine body long and deep hole diameter finishing device according to claim 2, characterized in that: An end of the slide rod (26) away from the mushroom head (22) is fixedly connected to an anti-slip pad (8).

7. A diesel engine body long and deep hole diameter finishing device according to claim 2, characterized in that: An inner hexagonal groove (9) is formed at one end of the main rod (1) away from the limiting sleeve (21).

8. A diesel engine body long and deep hole diameter finishing device according to claim 3, characterized in that: The gear ratio between the driving gear (31) and the driven gear (32) is 10:

1.

9. A method for using a diesel engine body long and deep hole diameter finishing device according to any one of claims 1 to 8, characterized in that: The steps are as follows: Step 1: first adjust the position of the movable sleeve (4) according to the inner diameter of the long deep hole in the diesel engine body, unscrew the bottom bolts on the movable sleeve (4), so that the movable sleeve (4) is no longer restricted, so that the limit block (7) can slide along the limit groove (6). The design of the limit groove (6) ensures that the movable sleeve (4) can only move along the outer wall of the main rod (1) and cannot rotate. At this time, the outer diameter of the finishing body (5) can fully contact the inner diameter of the long deep hole in the diesel engine body, and then tighten the fixing bolts; Step 2: At this time, the limiting sleeve (21) at one end of the main rod (1) is inserted downward so that the mushroom head (22) at the bottom end of the limiting sleeve (21) squeezes the end of the inner diameter of the long deep hole of the diesel engine body. As the main rod (1) continues to move, the mushroom head (22) moves relative to the limiting sleeve (21), and one end of a plurality of sliding rods (26) inside the limiting sleeve (21) is squeezed, so that the sliding rods (26) and the ear plates (27) cooperate to squeeze a plurality of springs (25). At this time, one end of the plurality of sliding rods (26) contacts the end of the inner diameter of the long deep hole, and the anti-skid pad (8) ensures that the sliding rods (26) and the limiting sleeve (21) are fixed to the inner diameter end. At this time, when the main rod (1) rotates, the connecting rod (2) does not rotate together; Step 3: insert one end of the finishing tool into the inner wall of the hexagonal groove (9) and rotate it at high speed. At this time, the main rod (1) rotates together, and drives the fixed sleeve (3) and the movable sleeve (4) to rotate by rotating the main rod (1), thereby driving the plurality of finishing bodies (5) to rotate along the main rod (1). The driving gear (31) is fixed in the long and deep hole of the machine body under the drive of the limit sleeve (21), so the driving gear (31) does not rotate, while the plurality of driven gears (32) rotate due to the meshing of the driving gear (31). At this time, the plurality of driven gears (32) rotate along the main rod (1) and also rotate themselves. Because the adjacent two surfaces of the finishing body (5) are alternately provided with sandpaper and cleaning cloth, finishing can be better achieved. In addition, the gear ratio between the driving gear (31) and the driven gear (32) is 10:

1. Therefore, when the main rod (1) rotates, the plurality of finishing bodies (5) rotate quickly to achieve finishing.

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