Marine diesel engine cylinder sleeve hoisting device

Abstract

The utility model discloses a marine diesel engine cylinder sleeve hoisting device, which relates to the technical field of cylinder sleeve hoisting and comprises a fixed disc, a lifting hook is fixedly mounted at the top end of the fixed disc, and a fixed rod is fixedly mounted in the center of the bottom end of the fixed disc. The outer surface of the fixing rod is sleeved with a movable sleeve in a sliding mode, a fixing device is arranged on the movable sleeve and used for fixing a diesel engine cylinder sleeve, and driving devices are arranged on the front side and the rear side of the bottom end of the fixing disc and used for driving the movable sleeve to move up and down. Through the arrangement of a fixing rod, a movable sleeve, a first U-shaped plate, a first connecting plate, a second U-shaped plate, arc-shaped clamping plates, a fixing sleeve, a third U-shaped plate, a hydraulic telescopic rod and a supporting plate, the two arc-shaped clamping plates are driven to move away from or close to each other through stretching and retracting of the hydraulic telescopic rod, and a cylinder sleeve can be rapidly clamped and fixed; and the device is suitable for cylinder sleeves with different inner diameters, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cylinder liner hoisting, in particular to a cylinder liner hoisting device for a marine diesel engine. Background Art

[0002] When the diesel engine is working, the piston reciprocates in the inner hole of the cylinder liner. Especially for the wet cylinder liner, its inner surface is directly affected by high-temperature and high-pressure combustion gas, and its outer surface is in contact with cooling water. The working conditions are harsh. For marine diesel engines, their output torque and compression ratio are larger, their overall dimensions are also larger, and their reliability requirements are also higher. Therefore, during the overhaul of the diesel engine, the cylinder liner needs to be inspected and repaired in time.

[0003] The currently published patent: CN202121965123.0 discloses a marine diesel engine cylinder liner hoisting device, including a front end support and positioning cover, a rear end support and positioning cover, a steel wire rope, and the bottom of the steel wire rope is connected to the rear end support and positioning cover through a connecting ring and a ring hook. There is a rotating fixed drill sleeve on the front end support and positioning cover for fixing the steel wire rope, and the sides of the front end support and positioning cover and the rear end support and positioning cover have adjustable locking screws for adapting to different cylinder liner sizes. The hoisting device is stable and efficient, and can be applied to a variety of cylinder liner sizes, solving the problems of low efficiency, insecurity, and verticality not meeting requirements in the previous manual cylinder liner installation.

[0004] However, the following problems will arise during the use of this solution: although the above-mentioned device can meet the needs of cylinder liners of more sizes by using several rear end support positioning blocks of different lengths, in the process of fixing the cylinder liners, the front end support positioning blocks and the rear end support positioning blocks need to be installed at both ends of the cylinder liners respectively, which is cumbersome to operate and reduces work efficiency, thereby resulting in low practicality of the above-mentioned device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a marine diesel engine cylinder liner hoisting device, which can solve the problem that in the process of fixing the cylinder liner of the prior art, the front end support positioning block and the rear end support positioning block need to be respectively installed at the two ends of the cylinder liner, which makes the operation more cumbersome and reduces the work efficiency.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a marine diesel engine cylinder liner hoisting device, comprising a fixed plate, a hook is fixedly installed on the top of the fixed plate, a fixed rod is fixedly installed at the center of the bottom of the fixed plate, a movable sleeve is slidably installed on the outer surface of the fixed rod, and a fixing device is arranged on the movable sleeve, which is used to fix the diesel engine cylinder liner;

[0009] Among them, a driving device is arranged on the front and rear sides of the bottom end of the fixed plate, and the device is used to drive the movable sleeve to move up and down;

[0010] Wherein, a cylinder sleeve is sleeved on the outer side of the bottom end of the fixing rod.

[0011] Preferably, the fixing device includes two first U-shaped plates, which are fixedly mounted on the left and right sides of the outer surface of the movable sleeve, and the first connecting plates are rotatably mounted inside the two first U-shaped plates, and the second U-shaped plates are rotatably mounted on one end of the two first connecting plates away from the first U-shaped plates.

[0012] Preferably, a side of the second U-shaped plate away from the first connecting plate is fixedly connected with an arc-shaped clamping plate, and a side of the arc-shaped clamping plate away from the second U-shaped plate is evenly fixedly mounted with a plurality of rubber plates.

[0013] Preferably, a second connecting plate is rotatably mounted inside the second U-shaped plate;

[0014] Among them, a fixed sleeve is fixedly installed at the bottom end of the outer surface of the fixed rod, and a third U-shaped plate is fixedly installed at the position of the outer surface of the fixed sleeve corresponding to the two first U-shaped plates, and the end of the second connecting plate away from the second U-shaped plate is rotatably installed inside the third U-shaped plate.

[0015] Preferably, a limiting ring is sleeved and fixedly installed on the outer surface of the fixing rod corresponding to the top position of the movable sleeve.

[0016] Preferably, the driving device comprises two hydraulic telescopic rods, and the two hydraulic telescopic rods are respectively fixedly mounted on the front and rear sides of the lower surface of the fixed plate;

[0017] Among them, the outer surface of the movable sleeve is fixedly connected with two support plates, and the two support plates are fixedly connected with the corresponding output ends of the hydraulic telescopic rod.

[0018] (III) Beneficial effects

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] (1) The marine diesel engine cylinder liner hoisting device is provided with a fixed rod, a movable sleeve, a first U-shaped plate, a first connecting plate, a second U-shaped plate, an arc-shaped clamping plate, a fixed sleeve, a third U-shaped plate, a hydraulic telescopic rod and a supporting plate. The extension and contraction of the hydraulic telescopic rod are used to drive the two arc-shaped clamping plates to move away from or closer to each other. The operation is simple and efficient, the cylinder liner can be clamped and fixed quickly, and the device is suitable for cylinder liners with different inner diameters, thereby improving the practicality of the device.

[0021] (2) The marine diesel engine cylinder liner hoisting device increases the friction between the arc-shaped clamping plate and the inner wall of the cylinder liner by arranging a plurality of rubber plates on the outer side of the arc-shaped clamping plate, thereby improving the clamping stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0023] Figure 1 This is a structural schematic diagram of a marine diesel engine cylinder liner hoisting device of the utility model;

[0024] Figure 2 This is a side view of the structure of the utility model;

[0025] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0026] Figure numerals: 1. fixed plate; 2. hook; 3. fixed rod; 4. movable sleeve; 5. first U-shaped plate; 6. first connecting plate; 7. second U-shaped plate; 8. arc clamping plate; 9. rubber plate; 10. second connecting plate; 11. fixed sleeve; 12. third U-shaped plate; 13. limiting ring; 14. hydraulic telescopic rod; 15. support plate; 16. cylinder sleeve. DETAILED DESCRIPTION

[0027] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] See also Figure 1-3 The utility model provides a technical solution: a marine diesel engine cylinder liner hoisting device, comprising a fixed plate 1, a hook 2 is fixedly installed on the top of the fixed plate 1, a fixed rod 3 is fixedly installed at the center of the bottom of the fixed plate 1, a movable sleeve 4 is slidably installed on the outer surface of the fixed rod 3, and a fixing device is arranged on the movable sleeve 4, which is used to fix the diesel engine cylinder liner;

[0032] Among them, a driving device is arranged at the front and rear sides of the bottom end of the fixed plate 1, and the device is used to drive the movable sleeve 4 to move up and down;

[0033] The outer side of the bottom end of the fixing rod 3 is sleeved with a cylinder sleeve 16 .

[0034] Furthermore, the fixing device includes two first U-shaped plates 5, which are fixedly mounted on the left and right sides of the outer surface of the movable sleeve 4, and the first connecting plates 6 are rotatably mounted inside the two first U-shaped plates 5, and the second U-shaped plates 7 are rotatably mounted on one end of the two first connecting plates 6 away from the first U-shaped plates 5.

[0035] Furthermore, an arc-shaped clamping plate 8 is fixedly connected to a side of the second U-shaped plate 7 away from the first connecting plate 6 , and a plurality of rubber plates 9 are evenly fixedly installed on a side of the arc-shaped clamping plate 8 away from the second U-shaped plate 7 .

[0036] Furthermore, a second connecting plate 10 is rotatably mounted inside the second U-shaped plate 7;

[0037] Among them, a fixed sleeve 11 is fixedly installed at the bottom end of the outer surface of the fixed rod 3, and a third U-shaped plate 12 is fixedly installed at the position of the outer surface of the fixed sleeve 11 corresponding to the two first U-shaped plates 5, and the end of the second connecting plate 10 away from the second U-shaped plate 7 is rotatably installed inside the third U-shaped plate 12.

[0038] Furthermore, a limiting ring 13 is sleeved and fixedly installed on the outer surface of the fixing rod 3 corresponding to the top position of the moving sleeve 4 .

[0039] Furthermore, the driving device includes two hydraulic telescopic rods 14, and the two hydraulic telescopic rods 14 are respectively fixedly mounted on the front and rear sides of the lower surface of the fixed plate 1;

[0040] Among them, the outer surface of the movable sleeve 4 is fixedly connected to two support plates 15, and the two support plates 15 are fixedly connected to the corresponding output ends of the hydraulic telescopic rod 14. When the cylinder sleeve 16 is hoisted, the device is first plugged into the central position inside the cylinder sleeve 16 by moving a crane or a diesel engine body, and then the hydraulic telescopic rod 14 is started. The telescopic end of the hydraulic telescopic rod 14 extends downward to drive the support plate 15 to move downward. The support plate 15 moves downward to drive the movable sleeve 4 to move downward on the outer surface of the fixed rod 3. The movable sleeve 4 moves downward to drive the first U-shaped plate 5 to move downward. The first U-shaped plate 5 moves downward to drive the first connecting plate 6 to move downward and rotate a certain angle, thereby making the two second U-shaped plates 7 move away from each other. The two second U-shaped plates 7 move away from each other. The two arc-shaped clamping plates 8 are moved away from each other, so that the two arc-shaped clamping plates 8 are pressed against the inner wall of the cylinder sleeve 16, and the friction between the arc-shaped clamping plates 8 and the inner wall of the cylinder sleeve 16 is increased by arranging a plurality of rubber plates 9, so as to improve the stability of clamping, and then the cylinder sleeve 16 is moved to a suitable position by driving the hook 2 by a mobile crane, so that the telescopic end of the hydraulic telescopic rod 14 contracts and drives the support plate 15 to move upward, and the support plate 15 moves upward to drive the movable sleeve 4 to move upward, and the movable sleeve 4 moves upward to drive the first connecting plate 6 to move upward, so that the two second U-shaped plates 7 move closer to each other, and the two second U-shaped plates 7 move closer to each other to drive the two arc-shaped clamping plates 8 to move closer to each other, and then the cylinder sleeve 16 is lowered, the operation is simple and efficient, and the practicability of the device is improved.

[0041] Working principle: When the cylinder sleeve 16 is hoisted, the device is first inserted into the center position of the cylinder sleeve 16 by moving a crane or a diesel engine body, and then the hydraulic telescopic rod 14 is started. The telescopic end of the hydraulic telescopic rod 14 extends downward to drive the support plate 15 to move downward. The support plate 15 moves downward to drive the movable sleeve 4 to move downward on the outer surface of the fixed rod 3. The movable sleeve 4 moves downward to drive the first U-shaped plate 5 to move downward. The first U-shaped plate 5 moves downward to drive the first connecting plate 6 to move downward and rotate a certain angle, thereby making the two second U-shaped plates 7 move away from each other. The two second U-shaped plates 7 move away from each other and drive the two arc-shaped clamping plates 8 to move away from each other, thereby making the two arc-shaped clamping plates 8 close to the inner wall of the cylinder sleeve 16, and by setting a plurality of rubber plates 9, the friction between the arc-shaped clamping plates 8 and the inner wall of the cylinder sleeve 16 is increased, thereby improving the clamping stability.

[0042] The cylinder sleeve 16 is moved to a suitable position by driving the hook 2 by a mobile crane, so that the telescopic end of the hydraulic telescopic rod 14 contracts and drives the support plate 15 to move upward, and the upward movement of the support plate 15 drives the movable sleeve 4 to move upward, and the upward movement of the movable sleeve 4 drives the first connecting plate 6 to move upward, so that the two second U-shaped plates 7 move closer to each other, and the two second U-shaped plates 7 move closer to each other, and drive the two arc-shaped clamping plates 8 to move closer to each other, so that the cylinder sleeve 16 is lowered. The operation is simple and efficient, and the practicability of the device is improved.

[0043] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A marine diesel engine cylinder liner hoisting device, comprising a fixed plate (1), a hook (2) fixedly mounted on the top of the fixed plate (1), a fixed rod (3) fixedly mounted at the center of the bottom of the fixed plate (1), a movable sleeve (4) slidably mounted on the outer surface of the fixed rod (3), characterized in that: The movable sleeve (4) is provided with a fixing device, which is used to fix the cylinder sleeve of the diesel engine; Wherein, driving devices are arranged at the front and rear sides of the bottom end of the fixed plate (1), and the driving devices are used to drive the movable sleeve (4) to move up and down; Wherein, a cylinder sleeve (16) is sleeved on the outer side of the bottom end of the fixing rod (3).

2. A marine diesel engine cylinder liner hoisting device according to claim 1, characterized in that: The fixing device comprises two first U-shaped plates (5), the two first U-shaped plates (5) are fixedly mounted on the left and right sides of the outer surface of the movable sleeve (4), the first connecting plates (6) are rotatably mounted inside the two first U-shaped plates (5), and the second U-shaped plates (7) are rotatably mounted on the ends of the two first connecting plates (6) away from the first U-shaped plates (5).

3. A marine diesel engine cylinder liner hoisting device according to claim 2, characterized in that: A side of the second U-shaped plate (7) away from the first connecting plate (6) is fixedly connected to an arc-shaped clamping plate (8), and a plurality of rubber plates (9) are evenly fixedly mounted on a side of the arc-shaped clamping plate (8) away from the second U-shaped plate (7).

4. A marine diesel engine cylinder liner hoisting device according to claim 3, characterized in that: A second connecting plate (10) is rotatably mounted inside the second U-shaped plate (7); A fixed sleeve (11) is fixedly installed at the bottom end of the outer surface of the fixed rod (3), and a third U-shaped plate (12) is fixedly installed at the position of the outer surface of the fixed sleeve (11) corresponding to the two first U-shaped plates (5), and one end of the second connecting plate (10) away from the second U-shaped plate (7) is rotatably installed inside the third U-shaped plate (12).

5. The marine diesel engine cylinder liner hoisting device according to claim 1, characterized in that: A limiting ring (13) is sleeved and fixedly installed on the outer surface of the fixing rod (3) at a position corresponding to the top end of the moving sleeve (4).

6. The marine diesel engine cylinder liner hoisting device according to claim 1, characterized in that: The driving device comprises two hydraulic telescopic rods (14), and the two hydraulic telescopic rods (14) are respectively fixedly mounted on the front and rear sides of the lower surface of the fixed plate (1); The outer surface of the movable sleeve (4) is fixedly connected to two support plates (15), and the two support plates (15) are both fixedly connected to the output ends of the corresponding hydraulic telescopic rods (14).

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