Grinding fixture for cylinder sleeve of ship internal combustion engine

Abstract

The utility model relates to the technical field of air cylinder sleeve grinding clamps, in particular to a ship internal combustion engine air cylinder sleeve grinding clamp which comprises a base, and a supporting block is fixed to the position, located on the left side, of the top end of the base. The inner wall of a cylinder sleeve is clamped under the action of a first threaded rod, side clamping blocks are arranged, move in a long sliding groove and are matched with a hydraulic lifting assembly, the positions of the side clamping blocks can be adjusted to make contact with and clamp the outer walls of the cylinder sleeves of different sizes, meanwhile, a first gear is driven by a rotating motor to be engaged with an annular toothed rail, and the inner wall of the cylinder sleeve is clamped. The inner clamping block for clamping the cylinder sleeve rotates and is matched with the contact block to support the cylinder sleeve, so that the cylinder sleeve can be rotationally adjusted, the cylinder sleeve can be rotationally adjusted while an effective and stable clamping function is realized, the cylinder sleeve is more accurate during grinding, and the inconvenience of clamping, fixing and adjusting the cylinder sleeve is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder liner grinding fixtures, in particular to a cylinder liner grinding fixture for a ship internal combustion engine. Background Art

[0002] The cylinder liner is an important component of the engine, and its performance directly affects the overall performance of the engine and even the performance of the machine. When producing and processing the cylinder, grinding is required. In order to make the cylinder liner processing more precise, a cylinder liner fixture is required to fix it. The usual grinding fixture will drive the cylinder liner to rotate to complete the grinding. However, the cylinder liner of a ship internal combustion engine is large in size and heavy, and it is not easy to rotate the cylinder liner. Therefore, it needs to be reinforced to ensure its stability during grinding. In addition, the cylinder liner may need to be rotated for adjustment during grinding. Due to its large size and heavy mass, it is not easy to adjust. In view of the above problems, this application designs a grinding fixture for the cylinder liner of a ship internal combustion engine. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a grinding fixture for a cylinder liner of a marine internal combustion engine.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a grinding fixture for a cylinder liner of a ship internal combustion engine, comprising a base, a support block is fixed on the top of the base at the left position, a rotating block is rotatably connected to the right end of the support block, a rotating motor is installed on the support block, a first gear is fixed on the output end of the rotating motor, an annular rack is fixed on the outer wall of the rotating block, the first gear is meshed with the annular rack, four first slide grooves are opened on the rotating block, the four first slide grooves are evenly distributed, an inner clamping block is slidably connected to the first slide groove, two first clamping plates are rotatably connected on the inner clamping block located on the outer side wall, a first motor is installed on the right end of the rotating block, a first bevel gear is fixed on the output end of the first motor inside the rotating block, four second bevel gears are meshed on the first bevel gear, the four second bevel gears are evenly distributed, a first threaded rod is fixed on the second bevel gear, the first threaded rod passes through the rotating block and is located on the first slide groove, the inner clamping block and The first threaded rod is threadedly connected at the corresponding position, and three hydraulic lifting assemblies are installed on the right side of the rotating block at the top of the base. Long lifting blocks are fixed to the output ends of the two hydraulic lifting assemblies on the left, and a long slide is provided on the long lifting block. A short lifting block is fixed to the output end of the hydraulic lifting assembly on the right, and a short slide is provided on the short lifting block. A two-way threaded rod is rotatably connected in the long slide and the short slide. A second motor is installed on the upper lifting block and the short lifting block. The output ends of the three second motors are respectively fixed to the corresponding two-way threaded rods through the long slide and the short slide. Two side clamping blocks are threadedly connected to the two two-way threaded rods on the left, and the side clamping blocks are slidably connected to the corresponding long slide. A plurality of second clamping plates are rotatably connected on the side wall of the side clamping block on the inner side, and two contact blocks are threadedly connected to the two-way threaded rod on the right, and the contact block is slidably connected to the short slide. A plurality of spherical grooves are provided on the inner side wall of the contact block, and a ball is rotatably connected in the spherical groove.

[0007] In order to make the clamp clamp the cylinder sleeve more firmly, the utility model is improved in that the surfaces of the inner clamping block, the first clamping plate and the second clamping plate are all provided with anti-slip grooves.

[0008] In order to make the inner clamping block more stable and prevent shaking, the utility model is improved in that the first slide groove is symmetrically provided with two T-shaped slide grooves, and the inner clamping block is slidably connected to the T-shaped slide grooves.

[0009] In order to make the side clamping block and the contact block more stable when moving and contacting the cylinder sleeve, the utility model is improved in that the long slide groove and the short slide groove are both arranged in a cross shape.

[0010] In order to prevent the long lifting block and the short lifting block from shaking, the utility model is improved in that a plurality of limit rods are fixed to the bottom ends of the long lifting block and the short lifting block, and a plurality of limit holes corresponding to and adapted to the limit rods are opened at the top end of the base.

[0011] In order to protect the first motor, the utility model is improved in that a protective shell is fixed to the right end of the rotating block, and the protective shell is sleeved on the first motor.

[0012] (III) Beneficial effects

[0013] Compared with the prior art, the utility model provides a grinding fixture for the cylinder liner of a marine internal combustion engine, which has the following beneficial effects:

[0014] The ship internal combustion engine cylinder liner grinding fixture is provided with an inner clamping block that is slidably connected to the first slide groove, and the inner wall of the cylinder liner is clamped under the action of the first threaded rod. By providing a side clamping block, it moves in the long slide groove, and cooperates with the hydraulic lifting component to adjust the position of the side clamping block to contact and clamp the outer wall of the cylinder liner of different sizes. At the same time, the first gear is driven by a rotating motor to engage the annular gear rail, so that the inner clamping block that clamps the cylinder liner is rotated, and the support of the cylinder liner by the contact block is cooperated to realize the rotation adjustment of the cylinder liner. While realizing the function of effective and stable clamping, the cylinder liner can be rotationally adjusted at the same time, so that the cylinder liner is more accurate when being ground, which solves the inconvenience of clamping and adjusting the cylinder liner. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the first main structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the first partial structure of the utility model in section;

[0017] Figure 3 This is a schematic diagram of the second partial structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the third partial structure of the utility model.

[0019] In the figure: 1. base; 2. support block; 3. rotating block; 4. rotating motor; 5. first gear; 6. annular gear; 7. first slide; 8. inner clamping block; 9. first clamping plate; 10. first motor; 11. first bevel gear; 12. second bevel gear; 13. first threaded rod; 14. hydraulic lifting assembly; 15. long lifting block; 16. long slide; 17. short lifting block; 18. short slide; 19. bidirectional threaded rod; 20. second motor; 21. side clamping block; 22. second clamping plate; 23. contact block; 24. spherical groove; 25. sphere; 26. T-shaped slide; 27. limit rod; 28. limit hole; 29. ​​protective shell. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4The grinding fixture for the cylinder sleeve of a ship internal combustion engine comprises a base 1, a support block 2 is fixed at the top left position of the base 1, a rotating block 3 is rotatably connected to the right end of the support block 2, a rotating motor 4 is installed on the support block 2, a first gear 5 is fixed to the output end of the rotating motor 4, an annular rack 6 is fixed to the outer wall of the rotating block 3, the first gear 5 is meshed with the annular rack 6, four first slide grooves 7 are opened on the rotating block 3, the four first slide grooves 7 are evenly distributed, an inner clamping block 8 is slidably connected to the first slide groove 7, and the inner clamping block 8 There are two first clamping plates 9 rotatably connected on the outer side wall, a first motor 10 is installed on the right end of the rotating block 3, the output end of the first motor 10 is located inside the rotating block 3 and a first bevel gear 11 is fixed, four second bevel gears 12 are meshed on the first bevel gear 11, and the four second bevel gears 12 are evenly distributed, a first threaded rod 13 is fixed on the second bevel gear 12, the first threaded rod 13 passes through the rotating block 3 and is located on the first slide groove 7, the inner clamping block 8 is threadedly connected to the first threaded rod 13 at the corresponding position, and the base 1 The top of the rotating block 3 is located on the right side and three hydraulic lifting assemblies 14 are installed. The output ends of the two left hydraulic lifting assemblies 14 are fixed with long lifting blocks 15, and the long lifting blocks 15 are provided with long slides 16. The output end of the right hydraulic lifting assembly 14 is fixed with a short lifting block 17, and the short lifting block 17 is provided with a short slide 18. The long slide 16 and the short slide 18 are both rotatably connected with a bidirectional threaded rod 19. The upper lifting block and the short lifting block 17 are both installed with a second motor 20. The output ends of the three second motors 20 pass through the long slides 16, respectively. The two bidirectional threaded rods 19 are fixed with the short slide groove 18 and the corresponding bidirectional threaded rods 19. Two side clamping blocks 21 are threadedly connected on the two bidirectional threaded rods 19 on the left side. The side clamping blocks 21 are slidably connected to the corresponding long slide groove 16. A plurality of second clamping plates 22 are rotatably connected to the inner side wall of the side clamping blocks 21. Two contact blocks 23 are threadedly connected on the right bidirectional threaded rod 19. The contact blocks 23 are slidably connected to the short slide groove 18. A plurality of spherical grooves 24 are provided on the inner side wall of the contact blocks 23. A ball 25 is rotatably connected in the spherical groove 24.

[0022] When the clamp is in use, first fix the cylinder sleeve of the ship's internal combustion engine above the clamp and keep it horizontal, start multiple hydraulic lifting components 14, so that the output end drives the long lifting block 15 and the short lifting block 17 to move up and down, and at the same time start the second motor 20 to drive the bidirectional threaded rod 19 to rotate, and the side clamping block 21 threadedly connected to the bidirectional threaded rod 19 moves along the long slide groove 16, and the clamping block threadedly connected to the bidirectional threaded rod 19 moves along the short slide groove 18. The side clamping block 21 and the contact block 23 are in contact with the outer wall of the cylinder sleeve through cooperation, and the second clamping plate 22 and the ball 25 are in contact with the cylinder sleeve to play a supporting role, so that the cylinder sleeve is set on the rotating block 3, and the first motor 10 is started to drive the first bevel gear 11 to rotate, and the first bevel gear 11 meshes with the four second bevel gears 12, and the second bevel gear 12 drives the first threaded rod 13 to rotate. The thread directions of the four first threaded rods 13 are matched with the second bevel gear 12, so that the inner clamping block 8 can move outward or inward synchronously at the same time. The inner clamping block 8 threadedly connected to the first threaded rod 13 moves outward at the same time and contacts the inner wall of the cylinder sleeve. The first clamping plate 9 contacts the inner wall of the cylinder sleeve to complete the clamping. When the cylinder sleeve needs to be rotated, the second motor 20 on the long lifting block 15 is started to make the side clamping block 21 away from the cylinder sleeve, and the rotating motor 4 is started to drive the first gear 5 to rotate. The first gear 5 engages the annular rack 6, thereby driving the rotating block 3 to rotate. The rotating block 3 drives the inner clamping block 8, and the inner clamping block 8 drives the cylinder sleeve to rotate. The contact block 23 supports the cylinder sleeve, and the ball 25 contacts the outer wall of the cylinder sleeve. Under its rotation, the ball 25 rotates in the spherical groove 24 and rotates a certain angle to clamp the cylinder sleeve with the side clamping block 21.

[0023] It is found in actual use that slippage may occur when clamping the cylinder liner, resulting in loose clamping. In order to solve the above problem, in this embodiment, the surfaces of the inner clamping block 8, the first clamping plate 9 and the second clamping plate 22 are all provided with anti-slip grooves.

[0024] It is found in actual use that shaking will occur when the inner clamping block 8 moves or clamps the cylinder liner. In order to avoid the above problem, in this embodiment, two T-shaped slide grooves 26 are symmetrically provided in the first slide groove 7, and the inner clamping block 8 is slidably connected to the T-shaped slide groove 26.

[0025] It is found in actual use that the side clamping block 21 and the contact block 23 may tilt under the action of gravity after contacting the cylinder sleeve, resulting in loose clamping. In order to solve the above problem, in this embodiment, the long slide groove 16 and the short slide groove 18 are both set to a cross shape.

[0026] It is found in actual use that the long lifting block 15 and the short lifting block 17 may shake or even tilt during the lifting process or be affected by the weight of the cylinder liner. In order to avoid the above problems, in this embodiment, a plurality of limit rods 27 are fixed to the bottom ends of the long lifting block 15 and the short lifting block 17, and a plurality of limit holes 28 corresponding to and adapted to the limit rods 27 are opened at the top end of the base 1.

[0027] It is found in actual use that when the cylinder liner is clamped, the cylinder liner may bump into the first motor 10 during the clamping and disassembly process, causing damage. In order to avoid the above problem, in this embodiment, a protective shell 29 is fixed to the right end of the rotating block 3, and the protective shell 29 is mounted on the first motor 10.

[0028] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0029] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0030] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0031] 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 grinding fixture for a cylinder liner of a ship internal combustion engine, comprising a base (1), characterized in that: A support block (2) is fixed at the top left position of the base (1), and a rotating block (3) is rotatably connected to the right end of the support block (2). A rotating motor (4) is installed on the support block (2), and a first gear (5) is fixed to the output end of the rotating motor (4). An annular rack (6) is fixed on the outer wall of the rotating block (3), and the first gear (5) meshes with the annular rack (6). Four first slide grooves (7) are formed on the rotating block (3), and the four first slide grooves (7) are evenly distributed. An inner clamping block (8) is slidably connected to the first slide groove (7), and the inner clamping block (8) is rotatably connected to the outer side wall. There are two first clamping plates (9), a first motor (10) is installed at the right end of the rotating block (3), the output end of the first motor (10) is located inside the rotating block (3), a first bevel gear (11) is fixed, four second bevel gears (12) are meshed on the first bevel gear (11), the four second bevel gears (12) are evenly distributed, a first threaded rod (13) is fixed on the second bevel gear (12), the first threaded rod (13) passes through the rotating block (3) and is located on the first slide groove (7), the inner clamping block (8) is threadedly connected to the first threaded rod (13) at the corresponding position, and the top end of the base (1) is located on the rotating block Three hydraulic lifting assemblies (14) are installed on the right side of (3), and the output ends of the two hydraulic lifting assemblies (14) on the left are fixed with long lifting blocks (15), and the long lifting blocks (15) are provided with long slide grooves (16). The output end of the hydraulic lifting assembly (14) on the right is fixed with a short lifting block (17), and the short lifting block (17) is provided with a short slide groove (18). The long slide groove (16) and the short slide groove (18) are both rotatably connected with a bidirectional threaded rod (19), and the long lifting block and the short lifting block (17) are both installed with a second motor (20), and the output ends of the three second motors (20) pass through the long slide groove (16) and the short slide groove (18) respectively. The groove (18) is fixed to the corresponding bidirectional threaded rod (19), and two side clamping blocks (21) are threadedly connected to the two bidirectional threaded rods (19) on the left side, and the side clamping blocks (21) are slidably connected to the corresponding long sliding groove (16). A plurality of second clamping plates (22) are rotatably connected to the inner side wall of the side clamping block (21), and two contact blocks (23) are threadedly connected to the right bidirectional threaded rod (19), and the contact block (23) is slidably connected to the short sliding groove (18). A plurality of spherical grooves (24) are opened on the inner side wall of the contact block (23), and a ball (25) is rotatably connected in the spherical groove (24).

2. The grinding fixture for cylinder liner of a marine internal combustion engine according to claim 1, characterized in that: The surfaces of the inner clamping block (8), the first clamping plate (9) and the second clamping plate (22) are all provided with anti-slip patterns.

3. The grinding fixture for cylinder liner of marine internal combustion engine according to claim 1, characterized in that: The first slide groove (7) is symmetrically provided with two T-shaped slide grooves (26), and the inner clamping block (8) is slidably connected to the T-shaped slide grooves (26).

4. The grinding fixture for cylinder liner of a marine internal combustion engine according to claim 1, characterized in that: The long slide groove (16) and the short slide groove (18) are both arranged in a cross shape.

5. The grinding fixture for cylinder liner of marine internal combustion engine according to claim 1, characterized in that: A plurality of limiting rods (27) are fixed to the bottom ends of the long lifting block (15) and the short lifting block (17), and a plurality of limiting holes (28) corresponding to and matching the limiting rods (27) are formed at the top end of the base (1).

6. The grinding fixture for cylinder liner of a marine internal combustion engine according to claim 1, characterized in that: A protective shell (29) is fixed to the right end of the rotating block (3), and the protective shell (29) is sleeved on the first motor (10).

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