CN210565943U

CN210565943U - Shock insulation limiter for ship power system

Info

Publication number: CN210565943U
Application number: CN201921554998.4U
Authority: CN
Inventors: 康磊; 娄建军; 强亮亮; 王峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-09-19
Filing date: 2019-09-19
Publication date: 2020-05-19
Anticipated expiration: 2029-09-19

Abstract

The utility model discloses a ship power system shock insulation limiter, which comprises a power unit, wherein two crossbeams are symmetrically arranged below the power unit and used for supporting upper load, a supporting vibration isolator is arranged at the bottom of each crossbeam and consists of a sleeve-type vibration isolator and a vertical vibration isolator, each sleeve-type vibration isolator comprises a T-shaped rod, a sleeve and a cylindrical rubber ring adhered to the inner wall of the sleeve, and the bottom end of the T-shaped rod is inserted into the cylindrical rubber ring; the utility model provides a vibration isolation stopper passes through the vibration of the balanced unit of spring restoring force to adopt the adjustment of block rubber buffering restraint hull gesture to the influence of equipment, keep apart power unit and elastic rubber for the bulkhead, the vibration of bulkhead and power unit weakens through buffering the back linearity, plays the effect of initiative vibration isolation protection to equipment, and the mutual transmission of the vibration of reducible power unit and hull has reduced the frequency excitation source, has improved the damping of boats and ships and has fallen the performance of making an uproar.

Description

Shock insulation limiter for ship power system

Technical Field

The utility model belongs to the technical field of boats and ships driving system, concretely relates to boats and ships driving system shock insulation stopper.

Background

With the progress and development of society, ship machinery and airborne equipment enter a precise and low-noise era, a ship power system is the heart of a ship, when cabin sections or racks in the environment vibrate excessively, vibration is transmitted to the power system, the frequency of the power system is disordered or local vibration is excessively large, and serious consequences are generated; the other is a machine and equipment which are vibration sources, and the main purpose is to reduce the dynamic acting force transmitted to the foundation below an allowable value;

although static and dynamic balance is carried out on the power equipment, unbalanced force still exists, the unbalanced force is transmitted to a public base or a foundation through an equipment foundation, not only can the noise of the surrounding environment be influenced, but also the normal operation of surrounding machines can be influenced, meanwhile, airborne electronic equipment is frequently damaged by mechanical environments such as vibration, impact and collision, the electronic equipment generates resonance with larger amplitude under certain excitation frequency and long-term vibration and impact under the vibration and impact environments, and the electronic equipment is easy to generate fatigue damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a boats and ships driving system shock insulation stopper to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a shock insulation limiter of a ship power system comprises a power unit, wherein two cross beams are symmetrically arranged below the power unit and used for supporting upper load, a supporting vibration isolator is arranged at the bottom of each cross beam and consists of a sleeve-type vibration isolator and a vertical vibration isolator, each sleeve-type vibration isolator comprises a T-shaped rod, a sleeve and a cylindrical rubber ring adhered to the inner wall of the sleeve, the bottom end of the T-shaped rod is inserted into the cylindrical rubber ring, the top end of the T-shaped rod is installed on a ship body through a bolt, the upper end of the sleeve and a supporting rib plate are welded into a whole, the end part of the supporting rib plate is fixed on the surface of each cross beam, each vertical vibration isolator comprises a conical sleeve, the rubber ring with the cross section being Y-shaped is fixed on the inner side of the conical sleeve, a conical seat matched with the shape of the rubber ring is installed on the inner side of the rubber ring, and the conical sleeve, be provided with the longitudinal arrangement I-shaped steel roof beam between the top of toper seat and the crossbeam, the one end and the crossbeam welded fastening of longitudinal arrangement I-shaped steel roof beam, and the other end is the laminating form with the toper seat.

Preferably, the equidistance distributes all around the power unit side has a plurality of vibration isolation limiters, the vibration isolation limiter includes X type support, the one end of X type support is fixed with basic stiff end, basic stiff end passes through bolt and hull fixed connection, the inboard of X type support is provided with the block rubber, the other end of X type support is provided with spring support, the adjustment pad has been placed on spring support's surface, flange has been placed on the surface of adjustment pad, flange passes through the adjustment pad through the bolt and is fixed with spring support, flange's end fixing has the fixed sleeve, the fixed sleeve's the outside is provided with the free sleeve, built-in spring has been placed between free sleeve and the fixed sleeve.

Preferably, a spring end plate is placed on the inner side end face of the free sleeve, one end of the built-in spring is attached to the end face of the spring end plate, a protrusion is arranged at the end portion of the free sleeve, a sliding groove matched with the protrusion is formed in the surface of the fixed sleeve, and balls are placed on the inner side of the sliding groove and the inner side of the protrusion.

Preferably, a cavity is formed in the rubber block, and the cross section of the cavity is of a rectangular structure.

Preferably, a plurality of transverse lines and longitudinal lines which are staggered transversely and vertically are formed on the surface of the power unit, and each transverse line and each longitudinal line penetrate through the vibration isolation limiter at the corresponding position.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the vibration isolation limiter in the utility model balances the vibration of the unit through the restoring force of the spring, and adopts the rubber block to buffer and restrain the influence of the adjustment of the posture of the ship body on the equipment, so that the power unit and the bulkhead are isolated by the elastic rubber, the vibration of the bulkhead and the power unit is linearly weakened after being buffered, the equipment is actively protected by vibration isolation, the mutual transmission of the vibration of the power unit and the ship body can be reduced, the frequency excitation source is reduced, and the vibration attenuation and noise reduction performance of the ship is improved;

2. when the ship body is subjected to pitching and heeling, the equipment is subjected to position change along with the inertia of the ship body, the equipment is prevented from being continuously dislocated by adopting the limiting device, limiting protection is carried out, and the damage to the equipment under the extreme working condition is reduced;

3. the extrusion deformation of the built-in spring and the rubber block ensures that the power unit always works in a stress allowable range, so that the built-in spring in the vibration isolator absorbs smaller elastic deformation, and larger deformation is absorbed by the rubber block stopper;

4. the ship can work under the conditions of large trim and heeling and various impact conditions, the equipment is protected, and the equipment is prevented from being damaged under the vibration.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a top sectional view of the power unit and vibration isolation stopper of the present invention;

fig. 3 is a schematic structural view of the vibration isolation stopper of the present invention.

In the figure: 1. a sleeve-type vibration isolator; 2. a vertical vibration isolator; 3. a vibration isolation stopper; 4. a power unit; 5. a cross beam; 6. longitudinally arranging I-shaped steel beams; 10. a T-shaped rod; 11. a cylindrical rubber ring; 12. a sleeve; 13. supporting the rib plate; 14. a rubber ring; 15. a conical seat; 16. a conical sleeve; 18. a free sleeve; 19. a ball bearing; 20. fixing the sleeve; 21. a spring end plate; 22. a built-in spring; 23. a spring support; 24. a rubber block; 25. an X-shaped support; 26. a base fixing end; 27. an adjustment pad; 28. a connecting flange; 31. a transverse line; 32. a longitudinal line.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 3, the present invention provides a technical solution: a shock insulation limiter of a ship power system comprises a power unit 4, two cross beams 5 are symmetrically arranged below the power unit 4 and used for supporting upper load, a supporting vibration isolator is arranged at the bottom of each cross beam 5 and consists of a sleeve-type vibration isolator 1 and a vertical vibration isolator 2, each sleeve-type vibration isolator 1 comprises a T-shaped rod 10, a sleeve 12 and a cylindrical rubber ring 11 adhered to the inner wall of the sleeve 12, the bottom end of the T-shaped rod 10 is inserted into the cylindrical rubber ring 11, the top end of the T-shaped rod 10 is installed on a ship body through a bolt, the upper end of the sleeve 12 and a supporting rib plate 13 are welded into a whole, the end part of the supporting rib plate 13 is fixed on the surface of the cross beam 5, each vertical vibration isolator 2 comprises a conical sleeve 16, a rubber ring 14 with a Y-shaped cross section is fixed on the inner side of the conical sleeve 16, a conical seat 15 matched with the shape of the rubber ring 14 is installed on the inner side, be provided with longitudinal arrangement I-steel roof beam 6 between the top of taper seat 15 and crossbeam 5, the one end and the crossbeam 5 welded fastening of longitudinal arrangement I-steel roof beam 6, and the other end is the laminating form with taper seat 15.

In this embodiment, preferably, a plurality of vibration isolation stoppers 3 are equidistantly distributed around the side of the power unit 4, each vibration isolation stopper 3 includes an X-shaped support 25, a base fixing end 26 is fixed at one end of the X-shaped support 25, the base fixing end 26 is fixedly connected with the hull through a bolt, a rubber block 24 is arranged inside the X-shaped support 25, a spring support 23 is arranged at the other end of the X-shaped support 25, an adjusting pad 27 is placed on the surface of the spring support 23, a connecting flange 28 is placed on the surface of the adjusting pad 27, the connecting flange 28 penetrates through the adjusting pad 27 through a bolt to be fixed with the spring support 23, when the spring support 23 is installed, the thickness is adjusted by increasing or decreasing the number of the adjusting pads 27 to maintain the relative position of the vibration isolation stopper and the power unit 4, a fixed sleeve 20 is fixed at the end of the connecting flange 28, a free sleeve 18 is arranged outside the fixed sleeve 20, a, through the utility model discloses in the vibration isolation system who adopts, with power unit 4 and bulkhead for the elastic rubber isolation, bulkhead and power unit 4's vibration is linear weakening after the buffering, plays the effect of initiative vibration isolation protection to equipment, and the mutual transmission of the vibration of reducible power unit 4 and hull has reduced the frequency excitation source, has improved the damping of boats and ships and has fallen the performance of making an uproar, and to boats and ships high temperature equipment, this isolator can absorb partial thermal expansion volume simultaneously.

In this embodiment, preferably, the spring end plate 21 is placed on the end surface of the inner side of the free sleeve 18, one end of the built-in spring 22 is attached to the end surface of the spring end plate 21, a protrusion is disposed on the end portion of the free sleeve 18, a sliding groove matched with the protrusion is formed in the surface of the fixed sleeve 20, and the ball 19 is placed on the inner side of the sliding groove and the protrusion.

In this embodiment, preferably, a cavity is formed in the rubber block 24, the rubber absorption deformation amount is increased through the cavity, the cross section of the cavity is of a rectangular structure, and the extrusion deformation of the built-in spring 22 and the rubber block 24 ensures that the power unit 4 always works within a stress allowable range, so that the built-in spring 22 in the vibration isolator absorbs small elastic deformation, and large deformation is absorbed by the stopper of the rubber block 24.

In this embodiment, a plurality of transverse lines 31 and longitudinal lines 32 are formed on the surface of the power unit 4, and each transverse line 31 and each longitudinal line 32 penetrate through the vibration isolation stopper 3 at the corresponding position.

The utility model discloses a theory of operation and use flow: when the utility model is used, when the ship body is vibrated greatly up and down, the vibrating force can pass through the T-shaped rod 10 fixedly connected with the inner wall of the ship body, at the moment, the T-shaped rod 10 can absorb certain shock through the buffering deformation of the cylindrical rubber ring 11, then the supporting rib plate 13 is transmitted through the sleeve 12 again, so that the vibrating force is weakened again, meanwhile, the fixed beam in the ship body transmits the vibrating force to the conical sleeve 16, the conical sleeve 16 transmits the force to the rubber ring 14 and the conical seat 15, the received force is buffered through the two, then the vibration force is greatly reduced for the power unit 4 through longitudinally arranging the I-shaped steel beam 6 again, thereby reducing the damage to the power unit 4 when the ship body is vibrated up and down, when the ship body is slightly inclined vertically and horizontally, the vibration isolation limiter 3 at the inclined direction can absorb shock, in the shock absorption, compress through built-in spring 22, free sleeve 18 slides in the spout through the arch afterwards, and ball 19 reduces wearing and tearing between them simultaneously for it is more steady to slide, is full of lubricating grease in the clearance of spout simultaneously, in order to guarantee ball 19's normal roll, when the hull has great vertical and horizontal inclination, built-in spring 22 resilience is not enough to maintain power unit 4's deformation, spring end plate 21 is pushed to the tight fixed sleeve 20 of subsides this moment, built-in spring 22 is no longer compressed this moment, the extrusion force transmits to block rubber 24, the extrusion deformation of block rubber 24 is enough to limit power unit 4's displacement.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a boats and ships driving system shock insulation stopper, includes power unit (4), two crossbeams (5) of below symmetrical arrangement of power unit (4) for support upper portion load, its characterized in that: the bottom of crossbeam (5) is provided with the support isolator, the support isolator comprises sleeve type isolator (1) and vertical isolator (2), sleeve type isolator (1) include T type pole (10), sleeve (12) and with sleeve (12) inner wall adhesive cylindric rubber ring (11), the inside of cylindric rubber ring (11) is inserted to the bottom of T type pole (10), the top of T type pole (10) is passed through the bolt and is installed on the hull, sleeve (12) upper end and support gusset (13) weld an organic whole, the end fixing of support gusset (13) is on the surface of crossbeam (5), vertical isolator (2) include taper sleeve (16), the inboard of taper sleeve (16) is fixed with rubber ring (14) that the cross section is the Y type, taper seat (15) rather than the shape looks adaptation are installed to the inboard of rubber ring (14), the utility model discloses a ship cabin, including the toper cover (16), be provided with between the top of toper seat (15) and crossbeam (5) longitudinal arrangement I-shaped steel roof beam (6), the one end and crossbeam (5) welded fastening of longitudinal arrangement I-shaped steel roof beam (6), and the other end is the laminating form with toper seat (15) on the fixed beam of installing in the ship cabin body through the bolt.

2. The marine power system seismic isolation stop of claim 1, wherein: the vibration isolation limiting device comprises a power unit (4), a plurality of vibration isolation limiting devices (3) are distributed on the periphery of the side of the power unit (4) at equal intervals, each vibration isolation limiting device (3) comprises an X-shaped support (25), a base fixing end (26) is fixed to one end of each X-shaped support (25), each base fixing end (26) is fixedly connected with a ship body through a bolt, a rubber block (24) is arranged on the inner side of each X-shaped support (25), a spring support (23) is arranged at the other end of each X-shaped support (25), an adjusting pad (27) is placed on the surface of each spring support (23), a connecting flange (28) is placed on the surface of each adjusting pad (27), each connecting flange (28) penetrates through each adjusting pad (27) through a bolt and is fixed to each spring support (23), a fixing sleeve (20) is fixed to the end of each connecting flange (28), a, an internal spring (22) is arranged between the free sleeve (18) and the fixed sleeve (20).

3. The marine power system seismic isolation stop of claim 2, wherein: a spring end plate (21) is placed on the inner side end face of the free sleeve (18), one end of an internal spring (22) is attached to the end face of the spring end plate (21), a protrusion is arranged on the end portion of the free sleeve (18), a sliding groove matched with the protrusion is formed in the surface of the fixed sleeve (20), and balls (19) are placed on the inner side of the sliding groove and the inner side of the protrusion.

4. The marine power system seismic isolation stop of claim 2, wherein: a cavity is formed in the rubber block (24), and the cross section of the cavity is of a rectangular structure.

5. The marine power system seismic isolation stop of claim 1, wherein: the surface of the power unit (4) is provided with a plurality of transverse lines (31) and longitudinal lines (32) which are staggered transversely and vertically, and each transverse line (31) and each longitudinal line (32) penetrate through the vibration isolation limiting stopper (3) at the corresponding position.