Pre-pressing tool for ship main engine vibration isolator

Abstract

The utility model discloses a pre-pressing tool for a ship main engine vibration isolator. The problem that time and labor are wasted due to the fact that traditional vibration isolators conduct pre-pressing one by one is mainly solved. The main pipe (3) is connected with the pump station, and a plurality of branch pipes (31) are arranged on the main pipe; and the pre-pressing assemblies (4) are arranged on the base, each pre-pressing support comprises a cross beam (41), the cross beam is provided with an oil jack (42) communicated with the corresponding branch pipe and a pressing plate (43) driven by the oil jack to ascend and descend, and an empty groove used for placing and pre-pressing a vibration isolator (9) is formed between the pressing plate and the base. According to the pre-pressing tool for the vibration isolators of the marine main engine, the vibration isolators are pre-pressed in batches through the oil pump, and the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the field of marine component detection, in particular to a pre-pressing tool for a vibration isolator of a main engine of a ship. Background Art

[0002] When a ship diesel engine is running under certain working conditions, the piston reciprocates, the crankshaft rotates, the small end of the connecting rod reciprocates with the piston, the large end of the connecting rod rotates with the crank pin, and the rod body swings around the pin or crosshead pin. The complex movement of the crank-connecting rod mechanism will inevitably produce periodically changing unbalanced forces and moments. These unbalanced forces and moments are transmitted to the hull, which can easily cause vibrations in other equipment. At the same time, they act on the hull to generate vibration noise, which is prone to fatigue damage, and further generate underwater noise, affecting the acoustic stealth of the ship. Therefore, it is necessary to install a vibration isolator at the bottom of the ship's main engine to isolate the excitation force generated by the vibration of the ship's main engine.

[0003] The vibration isolators need to be pre-pressed before use. The conventional method is to operate them one by one, which is time-consuming and labor-intensive. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the utility model provides a pre-stressing tool for a ship main engine isolator, which mainly solves the problem that the pre-stressing of traditional isolators is performed one by one, which is time-consuming and labor-intensive.

[0005] The technical solution of the utility model is:

[0006] A pre-pressing tool for a ship main engine vibration isolator, comprising a pump station and a base, and also comprising

[0007] A main pipe connected to the pump station and provided with a plurality of branch pipes;

[0008] If the pre-stressing assembly is arranged on the base, each of the pre-stressing assemblies includes a cross beam, on which is provided an oil top connected to the branch pipe and a pressure plate driven to rise and fall by the oil top, and a hollow groove for placing the pre-stressing device on the vibration isolator is formed between the pressure plate and the base.

[0009] One of the pressure plates pre-presses at least two vibration isolators simultaneously.

[0010] A plurality of the cross beams are arranged in parallel.

[0011] The bottom end surface of the cross beam is provided with a gasket for contacting the vibration isolator.

[0012] The gasket is made of rubber.

[0013] The main pipe is installed on the side wall of the base.

[0014] A clamp is provided on the side wall of the base, and the clamp comprises at least two elastic clips, and the two clips are surrounded to form a clamping groove for the main pipe to be installed.

[0015] The clamp is in a C-shaped structure.

[0016] The beneficial effects of the utility model are as follows: the utility model provides a pre-pressing tooling for vibration isolators of ship main engines, and the vibration isolators are pre-pressed in batches by an oil pump, which greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model.

[0018] Figure 2 It is a partial three-dimensional schematic diagram of another embodiment of the utility model. DETAILED DESCRIPTION

[0019] The utility model is further described below in conjunction with the accompanying drawings: As shown in the figure, a pre-stressing tool for ship main engine vibration isolators includes a pump station 1 and a base 2, and also includes a main pipe 3 connected to the pump station, and the main pipe is provided with a plurality of branch pipes 31; a plurality of pre-stressing components 4 are arranged on the base, each of the pre-stressing components includes a crossbeam 41, the crossbeam is provided with an oil top 42 connected to the branch pipe and a pressure plate 43 driven to rise and fall by the oil top, and an empty groove for the vibration isolator 9 to be placed for pre-stressing is formed between the pressure plate and the base. This device can pre-stress the ship main engine vibration isolators in batches: the main engine vibration isolators are arranged in pairs or individually on the base, the pump station provides pressure oil to drive the oil top to load the vibration isolators, and the oil pressure is precisely controlled as needed to adjust the pre-stressing load; it greatly improves the work efficiency.

[0020] In this embodiment, as shown in the figure, one pressing plate pre-presses at least two vibration isolators at the same time, so that the space can be better utilized and the length of the pressing plate can be appropriately lengthened.

[0021] In this embodiment, as shown in the figure, a plurality of beams are arranged in parallel, so as to reasonably utilize the space of the base and make the structure more compact.

[0022] In this embodiment, as shown in the figure, the bottom end surface of the cross beam is provided with a gasket for contacting with the vibration isolator to prevent wear.

[0023] In this embodiment, as shown in the figure, the gasket is made of rubber to prevent wear.

[0024] In this embodiment, as shown in the figure, the main pipe is installed on the side wall of the base, and can be installed by welding or other methods.

[0025] In this embodiment, as shown in the figure, the side wall of the base is provided with a clamp 5, which includes at least two elastic clips 51, and the two clips are surrounded to form a clamping groove 52 for the main pipe to be installed. With this structure, the main pipe can be easily installed and removed, and replaced.

[0026] In this embodiment, as shown in the figure, the clamp has a C-shaped structure.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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.

[0028] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0029] The embodiments described with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention. The embodiments should not be regarded as limiting the present invention, but any improvements based on the spirit of the present invention should be within the scope of protection of the present invention.

Claims

1. A pre-pressing tool for a vibration isolator of a ship main engine, comprising a pump station (1) and a base (2), characterized in that: Also includes A main pipe (3) connected to the pump station, and provided with a plurality of branch pipes (31); If the pre-pressing assembly (4) is arranged on the base, each of the pre-pressing assemblies comprises a crossbeam (41), on which is provided an oil top (42) connected to the branch pipe and a pressure plate (43) driven to rise and fall by the oil top, and between the pressure plate and the base, a hollow groove is formed for placing the vibration isolator (9) for pre-pressing.

2. The pre-pressing tool for a ship main engine isolator according to claim 1, characterized in that: One pressing plate pre-presses at least two vibration isolators simultaneously.

3. The pre-pressing tool for a ship main engine isolator according to claim 1, characterized in that: A plurality of the cross beams are arranged in parallel.

4. The pre-pressing tool for a ship main engine isolator according to claim 1, characterized in that: The bottom end surface of the cross beam is provided with a gasket for contacting the vibration isolator.

5. The pre-pressing tool for a vibration isolator of a ship main engine according to claim 4, characterized in that: The gasket is made of rubber.

6. The pre-pressing tool for a ship main engine isolator according to claim 1, characterized in that: The main pipe is installed on the side wall of the base.

7. The pre-pressing tool for a vibration isolator of a ship main engine according to claim 1, characterized in that: A clamp (5) is provided on the side wall of the base, and the clamp comprises at least two elastic clamping pieces (51), and the two clamping pieces are surrounded to form a clamping groove (52) for the main pipe to be installed.

8. The pre-pressing tool for a ship main engine isolator according to claim 7, characterized in that: The clamp is in a C-shaped structure.

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