CN210087693U

CN210087693U - Vertical pump group of marine oil station is to detaining type vibration isolation backing ring

Info

Publication number: CN210087693U
Application number: CN201920586483.6U
Authority: CN
Inventors: 郑操慧; 林众民
Original assignee: Wuhan Ma Kang Equipment Co Ltd
Current assignee: Wuhan Ma Kang Equipment Co Ltd
Priority date: 2019-04-26
Filing date: 2019-04-26
Publication date: 2020-02-18
Anticipated expiration: 2029-04-26

Abstract

The utility model discloses a buckling type vibration isolation gasket ring of a vertical pump unit for a marine oil station, which is arranged between a top plate of an oil tank and a middle cover flange of the pump unit; the vibration isolation cushion ring comprises a group ring seat ring and a plurality of connecting bolts; the bottom of the seat ring is fixed on a top plate of the oil tank, the group ring is fixed between the middle cover flange and the seat ring, and the middle cover flange, the group ring and the seat ring are connected together by adopting connecting bolts; the group ring comprises two compression rings, two disc rings, two bearing rings and a snap ring which are vertically arranged on the same axis. The utility model discloses a vibration isolation backing ring connects into organic whole with pump package and oil tank. The rings are mutually nested by the trapezoidal convex shoulders and the trapezoidal grooves, and the vertical vibration force is partially dispersed to the horizontal direction and is converted into heat energy; the horizontal end faces of the rings are provided with blocking cavities and gaps, vertical vibration force cannot be directly vertically transmitted, and materials of adjacent rings are different, so that additional vertical and horizontal shearing force can be generated to consume vibration energy, and vibration is effectively attenuated.

Description

Vertical pump group of marine oil station is to detaining type vibration isolation backing ring

Technical Field

The utility model relates to a vertical pump package of marine oil station is to detaining type vibration isolation backing ring, in particular to vertical pump group of marine oil station group that has the watertight and have the fire prevention function is to detaining type vibration isolation backing ring belongs to boats and ships damping technical field.

Background

The marine hydraulic pump station performs mission tasks for ships, provides and conveys various continuous pressure liquids for normal life and work of people, such as lubricating oil supply for a main engine and an auxiliary engine; providing hydraulic oil for the control systems of the main machine and the auxiliary machine; providing hydraulic oil for the controllable pitch propeller; pressure liquid, lubricating oil and the like are provided for deck machinery such as steering engines, anchor machines, cranes and the like. However, as the marine hydraulic pump station pump group is a moving machine for conveying power fluid, large mechanical vibration and noise exist, the mechanical vibration and noise can cause severe environment of a working place and a mechanical place, not only can cause adverse effects and damage to the oil station and the pump group, but also can cause adverse effects and damage to other equipment, and simultaneously can cause physical and psychological damage to crews, and can cause that a ship can not normally complete mission tasks in severe cases, and is particularly not beneficial to the stealth of a military ship, so that the operational capacity of the battle naval ship is severely restricted. In view of this, the vibration and noise of the hydraulic pump station for the ship are mainly reduced from the following four aspects in the technical field of ship vibration reduction at present, and the structural design of a pump group (mainly a pump and a prime motor) and an oil tank of the oil station is improved; secondly, the manufacturing precision of the pump group of the hydraulic pump station is improved; thirdly, an independent shock absorber is additionally arranged between a pump set of the marine hydraulic pump station and an oil tank mounting base; fourthly, a rubber damping sealing ring gasket is additionally arranged. However, both the first and second methods do not prevent environmental and other equipment vibrations from affecting the pump stack and are costly to design and manufacture (which is also one of the main directions of vibration and noise reduction efforts at present); the third method is that the shock absorber can gradually reduce the damping efficiency along with the lengthening of the service time, and meanwhile, the method is not suitable for the marine oil station pump set with the watertight requirement; the fourth method is not suitable for places with fire protection requirements. In view of the above, a novel vibration isolation device is needed to reduce the vibration noise of the pump set and meet the requirements of oil station for water tightness and fire resistance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a can alleviate vibration noise more than 4 ~ 7 decibels for oil station pump package, marine oil station vertical pump package make-up type vibration isolation backing ring that has watertight and fire prevention function.

The purpose of the utility model is realized through the following technical scheme:

a buckling type vibration isolation gasket ring of a vertical pump unit for a marine oil station is arranged between a top plate of an oil tank and a middle cover flange of the pump unit; the vibration isolation cushion ring comprises a group ring seat ring and a plurality of connecting bolts; the bottom of the seat ring is fixed on the top plate, the group ring is fixed between the middle cover flange and the seat ring, and the middle cover flange, the group ring and the seat ring are connected together by adopting a connecting bolt; the group ring comprises two compression rings, two disc rings, two bearing rings and a clamping ring which are coaxially and vertically arranged;

two the clamping ring is connected respectively the seat ring with on the well cover flange, two the clamping ring all is provided with the clamping ring recess on its relative face, every equal spacing one in the clamping ring recess the load ring, two the load ring all is provided with load ring recess, two on its relative face the block is connected between the load ring recess the snap ring, every the load ring with all set up between the interior cell wall of clamping ring recess the disc ring, the plane shape of disc ring is the wave that prolongs the girth and distribute.

Further, the cross sectional shape of clamping ring recess is trapezoidal, the cross sectional shape of bearing ring also is trapezoidal, and opens along circumference on its tip terminal surface and has the cross sectional shape to be the bearing ring caulking groove of rectangle, opens along circumference on its tip terminal surface and has the cross sectional shape to be trapezoidal bearing ring recess, all be provided with the cross sectional shape along circumference on the both ends terminal surface of snap ring and be trapezoidal snap ring convex shoulder.

Further, the disc ring is embedded in the bearing ring embedding groove, the bearing ring is embedded in the pressure ring groove, and the snap ring convex shoulder is embedded in the bearing ring groove.

Furthermore, the connecting bolts comprise a set bolt and a mounting bolt, a plurality of mounting bolt holes and a set bolt hole are formed in the pressing ring, the clamping ring, the disc ring and the bearing ring, a plurality of mounting threaded holes are formed in the upper end face of the seat ring, the set bolt penetrates through the set bolt holes, and the bearing ring, the disc ring, the clamping ring and the pressing ring adjacent to the middle cover flange are connected with the middle cover flange; the mounting bolt penetrates through the mounting bolt hole and is in threaded connection with the mounting threaded hole, and the force bearing ring, the disc ring, the clamping ring and the pressing ring adjacent to the seat ring are connected with the seat ring.

Further, the cross section of the vibration isolation cushion ring is rectangular, and the shape of the vibration isolation cushion ring is a circular ring structure.

Furthermore, a pressure sleeve cavity is arranged at the bottom of the nesting between the pressure ring and the bearing ring and between the pressure ring and the disc ring; a transition cavity is arranged at the bottom of the nesting between the bearing ring and the snap ring; blocking gaps are arranged between the two pressure rings and between the two bearing rings.

Further, the compression ring is made of nodular cast iron or vibration reduction alloy; the bearing ring and the clamping ring are made of graphite, nodular cast iron, pure iron, vibration reduction alloy, high-elastic rubber or alloy aluminum; the seat ring is made of carbon steel or vibration-damping alloy; the disc ring is made of spring steel; the connecting bolt is made of carbon steel or vibration reduction alloy.

Further, the number of the set bolts is an integral multiple of 2 and is more than or equal to 4; the number of the mounting bolts is integral multiple of 2, and is more than or equal to the number of the set bolts.

Further, the wavy wave crests or wave troughs of the disc ring are located at the mounting bolt holes and the group bolt holes, and when the wave crests are located at the mounting bolt holes, the wave troughs are located at the group bolt holes, and when the wave troughs are located at the mounting bolt holes, the wave crests are located at the group bolt holes.

Further, it is adjacent the clamping ring the bearing ring and the material between the snap ring is different, promptly the clamping ring with the material of bearing ring is different, the bearing ring with the material of snap ring is different.

The utility model discloses a marine vertical pump group of oil station is to detaining the theory of operation and the advantage of type vibration isolation backing ring as follows:

the utility model adopts a structure that the press ring, the disc ring, the bearing ring, the snap ring, the bearing ring, the disc ring and the press ring are sequentially connected by the conical surface in a pressing way, and the conical surface nesting structure can disperse a part of vertical vibration force to the inner and outer horizontal directions of the group ring; for the pressure ring, the inner side wall of the pressure ring is subjected to horizontal inward vibration force, the outer side wall of the pressure ring is subjected to horizontal outward vibration force, the two vibration forces are distributed along the circumference, the vibration forces are equal in magnitude and opposite in direction, internal consumption is formed, and vibration mechanical energy in the horizontal direction is converted into heat energy to be diffused into air, so that the vibration reduction effect is achieved; for the bearing ring, the inner side wall and the outer side wall of the bearing ring are subjected to extrusion vibration force, the extrusion vibration force is dispersed to a part in the horizontal direction through the conical surface, the horizontal vibration forces distributed along the circumference are equal in magnitude and opposite in direction, so that internal loss is formed, and the vibration mechanical energy in the horizontal direction is converted into heat energy to be diffused into air, so that the vibration damping effect is achieved; for the snap ring, the inner side of the snap ring is subjected to horizontally outward extrusion vibration force, the outer side of the snap ring is subjected to horizontally inward extrusion vibration force, the two horizontal vibration forces are distributed along the circumference in equal size and opposite directions to form internal consumption, and the vibration mechanical energy in the horizontal direction is converted into heat energy to be diffused into air, so that the vibration reduction effect is achieved; furthermore, due to the effects of the pressing sleeve cavity, the transition cavity and the blocking gap, the direct transmission of the vertical vibration force is blocked, the vertical vibration force is bent for multiple times to change the direction, the transmission path of the vibration force is prolonged, and the vibration damping effect is achieved; moreover, because the materials of the adjacent sub-rings are different, the vibration force is not uniformly distributed in the same horizontal plane, so that shearing forces in the horizontal plane are necessarily generated, the shearing forces are internal forces, and the work is converted into heat to be dissipated into the air, thereby playing the role of vibration reduction; because the conical surface nesting is adopted between the adjacent branched rings, the sectional areas of the same ring on different horizontal sections are not equal, so that the vibration forces of different sections are not equal, the shearing forces in the vertical direction and the horizontal direction are inevitably generated, and the work of the shearing forces is converted into heat to be radiated into the air, thereby playing the role of vibration reduction; the natural vibration frequencies of the rings are different due to different materials and structures among the rings, so that the vibration is further attenuated; meanwhile, as the disc ring has elasticity stronger than that of other sub-rings, the integral natural frequency of the group ring can be effectively changed by adjusting the tightness of the group bolt and the mounting bolt, so that the vibration is further attenuated; then the reuse passes a plurality of stack bolts of stack bolt hole and links into an organic whole with well cover flange and group ring (not including the clamping ring of lower part), and the reuse passes a plurality of construction bolts of construction bolt hole and with the group ring (not including the clamping ring on upper portion) precession installation screw hole with group ring and seat ring connection become whole, and the not lug connection's between the clamping ring of lower part and the clamping ring on upper portion structure has prolonged the route through construction bolt transmission vibration power in this kind of group, has increased the damping to vibration has been reduced. Under the combined action of above-mentioned measure, both alleviateed the vibration noise of oil station pump package self and alleviateed environment and other equipment vibration betterly right the utility model discloses bear the vibration influence of pump package. The utility model discloses can alleviate vibration noise more than 4 ~ 7 decibels.

The utility model discloses also can be used to independent vertical pump package, oil tank and oil tank roof are replaced by base and base panel this moment.

The utility model can be used for ships, land and vehicles; all obtain good social and economic benefits.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a top view of a gang ring in an embodiment of the invention;

fig. 3 is a top view of the pressure ring according to the embodiment of the present invention;

FIG. 4 is a cross-sectional view taken at A-A of FIG. 3;

fig. 5 is a top view of the force bearing ring in the embodiment of the present invention;

FIG. 6 is a cross-sectional view taken at B-B of FIG. 5;

fig. 7 is a top view of a snap ring in an embodiment of the invention;

FIG. 8 is a cross-sectional view taken at D-D of FIG. 7;

FIG. 9 is a top view of a disc ring according to an embodiment of the present invention;

FIG. 10 is a cross-sectional expanded view at E-E in FIG. 9;

FIG. 11 is a top view of a seat ring in an embodiment of the present invention;

fig. 12 is a sectional view at G-G in fig. 11.

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.

As shown in fig. 1, the marine oil station vertical pump group buckling type vibration isolation gasket ring comprises an oil tank 10, a pump group 20 and the marine oil station vertical pump group buckling type vibration isolation gasket ring, wherein a top plate 11 of the oil tank 10 is provided with a pump group through hole 101, the pump group 20 is composed of a prime mover 21, a middle cover 22, a middle cover flange 221 and a pump 23, and the vibration isolation gasket ring is installed between the top plate 11 and the middle cover flange 221;

as shown in fig. 1 to 12, the vibration isolating grommet includes a group ring 30, a seat ring 60, and a plurality of coupling bolts; the bottom of the seat ring 60 is fixed on the top plate 11, the group ring 30 is fixed between the middle cover flange 221 and the seat ring 60, and the middle cover flange 221, the group ring 30 and the seat ring 60 are connected together by adopting a connecting bolt; the group ring 30 comprises two press rings 31, two disc rings 34, two bearing rings 32 and a snap ring 33 which are coaxially and vertically arranged;

two the clamping ring 31 is connected respectively seat ring 60 with on well cover flange 221, two the clamping ring 31 all is provided with clamping ring recess 311 on its relative face, every equal spacing one in the clamping ring recess 311 bearing ring 32, two bearing ring 32 all is provided with bearing ring recess 321, two on its relative face bearing ring 32 between the bearing ring recess 321 the block is connected snap ring 33, every bearing ring 32 with all set up between the inner wall of clamping ring recess 311 disc ring 34, the plane shape of disc ring 34 is the wave that prolongs the girth and distribute.

As shown in fig. 3 to 8, the cross-sectional shape of the pressing ring groove 311 is trapezoidal, the cross-sectional shape of the carrier ring 32 is also trapezoidal, a carrier ring caulking groove 322 with a rectangular cross-sectional shape is formed on the small end face of the carrier ring along the circumferential direction, a carrier ring groove 321 with a trapezoidal cross-sectional shape is formed on the large end face of the carrier ring along the circumferential direction, and a snap ring shoulder 331 with a trapezoidal cross-sectional shape is formed on both end faces of the snap ring 33 along the circumferential direction.

As shown in fig. 1, the disk ring 34 is embedded in the bearing ring embedding groove 322, the bearing ring 32 is embedded in the press ring groove 311, and the snap ring shoulder 331 is embedded in the bearing ring groove 321.

As shown in fig. 1, the connecting bolts include a set bolt 40 and a set bolt 50, a plurality of set bolt holes 51 and a plurality of set bolt holes 41 are formed in the pressing ring 31, the snap ring 33, the disk ring 34 and the bearing ring 32, a plurality of set threaded holes 61 are formed in the upper end surface of the seat ring 60, the pump 23 and the middle cover 22 pass through the set ring 30, the seat ring 60 and the pump set through hole 101, the set bolt 40 passes through the set bolt holes 41, and the pressing ring 30 (without the lower pressing ring 31), i.e., the bearing ring 32, the disk ring 34, the snap ring 33 and the pressing ring 31 adjacent to the middle cover flange 221, is connected with the middle cover flange 221; the mounting bolt 50 penetrates through the mounting bolt hole 51 to be in threaded connection with the mounting threaded hole 61, and the group ring 30 (without the upper pressing ring 31), namely the bearing ring 32, the disc ring 34, the clamping ring 33 and the pressing ring 31 adjacent to the seat ring 60 are connected with the seat ring 60.

The number of the set bolts 40 is integral multiple of 2 and is more than or equal to 4; the number of the mounting bolts 50 is integral multiple of 2, and is more than or equal to the number of the set bolts 40; in this embodiment, the number of the set bolts 40 and the number of the mounting bolts are 8.

As a preferred embodiment, the cross section of the vibration isolation ring of the present invention is rectangular, and the outer shape is a circular ring structure.

As shown in fig. 1, a nesting bottom between the press ring 31 and the bearing ring 32 and between the press ring 31 and the disk ring 34 is provided with a press sleeve cavity 71; a transition cavity 72 is arranged at the bottom of the nesting between the bearing ring 32 and the snap ring 33; blocking gaps 73 are arranged between the two pressing rings 31 and between the two bearing rings 32.

The compression ring 31 is made of nodular cast iron or vibration reduction alloy; the bearing ring 32 and the clamping ring 33 are made of graphite, nodular cast iron or pure iron, and the bearing ring and the clamping ring can be made of damping alloy, high-elastic rubber or alloy aluminum in places without fireproof requirements; the seat ring 60 is made of carbon steel or vibration-damping alloy; the disc ring 34 is made of spring steel; the connecting bolt is made of carbon steel or vibration reduction alloy.

The wavy peaks or valleys of the disc ring 34 are located at the mounting bolt holes 51 and the stack bolt holes 41, and the valleys are located at the stack bolt holes 41 when the peaks are located at the mounting bolt holes 51, and the peaks are located at the stack bolt holes 41 when the valleys are located at the mounting bolt holes 51.

The press ring 31 is made of a different material than the bearing ring 32, and the bearing ring 32 is made of a different material than the snap ring 33.

In addition to the above embodiments, the present invention can also have other embodiments, and all technical solutions formed by equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. A marine oil station vertical pump set buckling type vibration isolation gasket ring is arranged between a top plate (11) of an oil tank (10) and a middle cover flange (221) of a pump set (20); the method is characterized in that: the vibration isolation cushion ring comprises a group ring (30), a seat ring (60) and a plurality of connecting bolts; the bottom of the seat ring (60) is fixed on the top plate (11), the group ring (30) is fixed between the middle cover flange (221) and the seat ring (60), and the middle cover flange (221), the group ring (30) and the seat ring (60) are connected together by adopting a connecting bolt; the group ring (30) comprises two press rings (31), two disc rings (34), two bearing rings (32) and a snap ring (33), which are coaxially and vertically arranged;

two clamping ring (31) are connected respectively seat ring (60) with on well cover flange (221), two clamping ring (31) all is provided with clamping ring recess (311) on its relative face, every equal spacing one in clamping ring recess (311) load ring (32), two load ring (32) all is provided with load ring recess (321) on its relative face, two the block is connected between load ring recess (321) snap ring (33), every load ring (32) with all set up between the inner tank wall of clamping ring recess (311) disc ring (34), the plane shape of disc ring (34) is the wave that prolongs the circumference and distributes.

2. The marine oil station vertical pump group to buckling vibration isolator ring of claim 1, wherein: the cross sectional shape of clamping ring recess (311) is trapezoidal, the cross sectional shape of bearing ring (32) also is trapezoidal, and opens bearing ring caulking groove (322) that have the cross sectional shape to be the rectangle on its tip terminal surface along circumference, opens along circumference on its tip terminal surface and has the cross sectional shape to be trapezoidal bearing ring recess (321), all be provided with the cross sectional shape along circumference on the both ends terminal surface of snap ring (33) and be trapezoidal snap ring convex shoulder (331).

3. The marine oil station vertical pump group to buckling vibration isolator ring of claim 2, wherein: the disc ring (34) is embedded in the bearing ring embedding groove (322), the bearing ring (32) is embedded in the press ring groove (311), and the snap ring shoulder (331) is embedded in the bearing ring groove (321).

4. The marine oil station vertical pump group to buckling vibration isolator ring of claim 1, wherein: the connecting bolts comprise a set bolt (40) and a mounting bolt (50), a plurality of mounting bolt holes (51) and a set bolt hole (41) are formed in the pressing ring (31), the clamping ring (33), the disc ring (34) and the bearing ring (32), a plurality of mounting threaded holes (61) are formed in the upper end face of the seat ring (60), the set bolt (40) penetrates through the set bolt hole (41), and the pressing ring (31) adjacent to the bearing ring (32), the disc ring (34), the clamping ring (33) and the middle cover flange (221) are connected with the middle cover flange (221); the mounting bolt (50) penetrates through the mounting bolt hole (51) and is in threaded connection with the mounting threaded hole (61), the force bearing ring (32), the disc ring (34), the clamping ring (33) and the seat ring (60) are adjacent, and the pressing ring (31) is connected with the seat ring (60).

5. The marine oil station vertical pump group to buckling vibration isolator ring of claim 1, wherein: the cross section of the vibration isolation backing ring is rectangular, and the shape of the vibration isolation backing ring is a circular annular structure.

6. The marine oil station vertical pump group buckling type vibration isolating grommet according to any one of claims 1 to 4, wherein: a pressing sleeve cavity (71) is arranged at the bottom of the nesting between the pressing ring (31) and the bearing ring (32) and between the pressing ring (31) and the disc ring (34); a transition cavity (72) is arranged at the bottom of the nesting between the bearing ring (32) and the snap ring (33); blocking gaps (73) are arranged between the two pressure rings (31) and between the two bearing rings (32).

7. The marine oil station vertical pump group pairing buckle type vibration isolation gasket ring according to claim 1, characterized in that the material of the pressure ring (31) is nodular cast iron or vibration damping alloy; the bearing ring (32) and the clamping ring (33) are made of graphite, nodular cast iron, pure iron, vibration reduction alloy, high-elastic rubber or alloy aluminum; the seat ring (60) is made of carbon steel or vibration-damping alloy; the disc ring (34) is made of spring steel; the connecting bolt is made of carbon steel or vibration reduction alloy.

8. The marine oil station vertical pump group to buckling vibration isolator ring of claim 4, wherein: the number of the set bolts (40) is integral multiple of 2 and is more than or equal to 4; the number of the mounting bolts (50) is integral multiple of 2, and is more than or equal to the number of the set bolts (40).

9. The marine oil station vertical pump group to buckling vibration isolator ring of claim 4, wherein: the wave-shaped wave crests or wave troughs of the disc ring (34) are located at the mounting bolt holes (51) and the stack bolt holes (41), and the wave troughs are located at the stack bolt holes (41) when the wave crests are located at the mounting bolt holes (51), and the wave crests are located at the stack bolt holes (41) when the wave troughs are located at the mounting bolt holes (51).

10. The marine oil station vertical pump group to buckling vibration isolator ring of claim 7, wherein: the press ring (31) is made of different materials than the bearing ring (32), and the bearing ring (32) is made of different materials than the snap ring (33).