阅读说明：本技术 一种橡胶滚柱护舷 (Rubber roller fender ) 是由 庄长友 巫占钟 杨余 于 2021-08-23 设计创作，主要内容包括：本发明涉及船用设备领域,尤其涉及一种橡胶滚柱护舷,包括安装轴、滚柱和环形橡胶；所述滚柱沿轴线设有与所述安装轴转动连接的通孔；所述滚柱的侧面沿圆周方向设有截面形状为劣弧弓形的环形槽；所述环形橡胶与所述环形槽嵌套配合,所述环形橡胶的截面形状为圆形；所述环形槽的截面的半径值大于所述环形橡胶的截面的半径值。本发明提供的橡胶滚柱护舷能够卸除环形橡胶受到的冲击,避免护舷结构损坏导致可靠性下降。(The invention relates to the field of marine equipment, in particular to a rubber roller fender, which comprises a mounting shaft, a roller and annular rubber; the roller is provided with a through hole which is rotationally connected with the mounting shaft along the axis; the side surface of the roller is provided with an annular groove with a section in the shape of a minor arc in the circumferential direction; the annular rubber is nested and matched with the annular groove, and the cross section of the annular rubber is circular; the radius value of the section of the annular groove is larger than that of the section of the annular rubber. The rubber roller fender provided by the invention can relieve the impact on annular rubber, and the reliability reduction caused by the structural damage of the fender is avoided.)

1. A rubber roller fender is characterized by comprising a mounting shaft, a roller and annular rubber;

the roller is provided with a through hole which is rotationally connected with the mounting shaft along the axis;

the side surface of the roller is provided with an annular groove with a section in the shape of a minor arc in the circumferential direction;

the annular rubber is nested and matched with the annular groove, and the cross section of the annular rubber is circular;

the radius value of the section of the annular groove is larger than that of the section of the annular rubber.

2. The rubber roller fender of claim 1, wherein a ratio of a radius value of the annular groove to a radius value of the annular rubber is in a range of 1.3 to 1.6.

3. The rubber roller fender of claim 1, wherein the surface of the annular rubber is spaced from the axis of the roller by a distance greater than the groove bottom of the annular groove.

4. The rubber roller fender of claim 1, wherein the rollers comprise a first roller and a second roller, the first roller and the second roller being coaxially removably connected, the first roller having a first through hole axially disposed in rotational connection with the mounting shaft, the second roller having a second through hole axially disposed in rotational connection with the mounting shaft, the annular grooves comprising a first annular groove disposed on the first roller and a second annular groove disposed on the second roller.

5. The rubber roller fender of claim 4, wherein the first roller is provided with a fitting boss in the axial direction, and the second roller is provided with a fitting groove in the axial direction, which fits in the fitting boss.

6. The rubber roller fender of claim 5, wherein the fitting boss is provided with a fitting external thread, and the fitting groove is provided with a fitting internal thread that mates with the fitting external thread.

7. The rubber roller fender of claim 1, wherein an inner wall of the through hole is provided with a ball bearing engaged with the mounting shaft.

8. The rubber roller fender of claim 1, further comprising a first locking plate, a second locking plate, a first elastic member and a second elastic member, wherein the first locking plate and the second locking plate are respectively disposed at both ends of the mounting shaft, one end of the roller abuts against the first locking plate through the first elastic member, and the other end of the roller abuts against the second locking plate through the second elastic member.

9. The rubber roller fender of claim 8, further comprising a first pad and a second pad, both of which are slidably connected to the mounting shaft, the first resilient member urging the first pad against one end of the roller, and the second resilient member urging the second pad against the other end of the roller.

10. The rubber roller fender of claim 1, wherein a surface of the roller is provided with a nipple penetrating to the through hole.

Technical Field

The invention relates to the field of marine equipment, in particular to a rubber roller fender.

Background

In order to reduce the impact force on the working ship of each engineering class when the working ship collides with other ships and the ship berths at a wharf, rubber fender equipment is needed to protect the ship steel structure. The existing rubber fender is tightly attached to a ship steel structure when being installed, and huge impact force is directly resisted through rubber when collision occurs, so that the problem that the rubber fender cannot be rapidly damaged, and the cost is increased due to the price of rubber fender materials and installation cost is avoided.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: provided is a rubber roller fender which can prevent the rubber fender from being damaged.

In order to solve the technical problems, the invention adopts the technical scheme that: a rubber roller fender comprises a mounting shaft, a roller and annular rubber;

the roller is provided with a through hole which is rotationally connected with the mounting shaft along the axis;

the side surface of the roller is provided with an annular groove with a section in the shape of a minor arc in the circumferential direction;

the annular rubber is nested and matched with the annular groove, and the cross section of the annular rubber is circular;

the radius value of the section of the annular groove is larger than that of the section of the annular rubber.

Further, the ratio of the radius value of the annular groove to the radius value of the annular rubber ranges from 1.3 to 1.6.

Further, the distance between the surface of the annular rubber and the axis of the roller is larger than the distance between the groove bottom of the annular groove and the axis of the roller.

Further, the rollers comprise a first roller and a second roller, the first roller and the second roller are coaxially detachably connected, the first roller is provided with a first through hole which is rotatably connected with the mounting shaft along an axis, the second roller is provided with a second through hole which is rotatably connected with the mounting shaft along the axis, and the annular groove comprises a first annular groove arranged on the first roller and a second annular groove arranged on the second roller.

Furthermore, the first roller is provided with an assembling boss along the axial direction, and the second roller is provided with an assembling groove matched with the assembling boss along the axial direction.

Furthermore, the assembly boss is provided with an assembly external thread, and the assembly groove is provided with an assembly internal thread matched with the assembly external thread.

Furthermore, the inner wall of the through hole is provided with a ball bearing matched with the mounting shaft.

Furthermore, the roller locking device further comprises a first locking plate, a second locking plate, a first elastic piece and a second elastic piece, wherein the first locking plate and the second locking plate are respectively arranged at two ends of the mounting shaft, one end of the roller is abutted against the first locking plate through the first elastic piece, and the other end of the roller is abutted against the second locking plate through the second elastic piece.

Further, still include first backing plate and second backing plate, first backing plate with the second backing plate all with installation axle sliding connection, first elastic component will first backing plate supports and leans on the one end of roller, the second elastic component will the second backing plate supports and leans on the other end of roller.

Furthermore, a grease nipple penetrating to the through hole is arranged on the surface of the roller.

The invention has the beneficial effects that: the utility model provides a rubber roller fender, during the installation, establish the annular rubber cover and imbed in the ring channel, install the roller rotatable on the installation axle, because the radius value of the cross-section of ring channel is greater than the radius value of the cross-section of annular rubber, cooperation roller and installation axle adopt the rotation connection structure, when the fender received the impact, the annular rubber cover can be in the ring channel adaptability deformation and along the cambered surface displacement of ring channel, simultaneously, the roller can be in installation epaxial adaptability rotation, thereby the impact force that receives annular rubber in radial direction is dumped, avoid annular rubber to lead to the damage because of extrusion, friction.

Drawings

FIG. 1 is a schematic structural view of a rubber roller fender according to an embodiment of the present invention;

FIG. 2 is a partial schematic view of a rubber roller fender according to an embodiment of the invention;

description of reference numerals:

1. installing a shaft; 2. A roller; 21. A through hole; 22. An annular groove; 221. A first annular groove; 222. A second annular groove; 23. A first roller; 231. A first through hole; 232. Assembling a boss; 24. A second roller; 241. A second through hole; 242. Assembling a groove; 3. An annular rubber; 4. A first locking plate; 5. A second locking plate; 6. A first elastic member; 7. A second elastic member; 8. A first backing plate; 9. A second backing plate; 10. A beef tallow nozzle.

Detailed Description

In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.

Referring to fig. 1 to 2, a rubber roller fender comprises a mounting shaft, a roller and annular rubber;

the roller is provided with a through hole which is rotationally connected with the mounting shaft along the axis;

the side surface of the roller is provided with an annular groove with a section in the shape of a minor arc in the circumferential direction;

the annular rubber is nested and matched with the annular groove, and the cross section of the annular rubber is circular;

the radius value of the section of the annular groove is larger than that of the section of the annular rubber.

From the above description, the beneficial effects of the present invention are: the utility model provides a rubber roller fender, during the installation, establish the annular rubber cover and imbed in the ring channel, install the roller rotatable on the installation axle, because the radius value of the cross-section of ring channel is greater than the radius value of the cross-section of annular rubber, cooperation roller and installation axle adopt the rotation connection structure, when the fender received the impact, the annular rubber cover can be in the ring channel adaptability deformation and along the cambered surface displacement of ring channel, simultaneously, the roller can be in installation epaxial adaptability rotation, thereby the impact force that receives annular rubber in radial direction is dumped, avoid annular rubber to lead to the damage because of extrusion, friction.

In an optional embodiment, the ratio of the radius value of the annular groove to the radius value of the annular rubber is 1.3-1.6.

From the above description, it can be known that, when the ratio of the radius value of the annular groove to the radius value of the annular rubber is in the above range, the service life of the annular rubber can be prolonged by about 60%, and the damage degree of the ship steel structure in collision can be reduced by more than 50%.

In an alternative embodiment, the surface of the annular rubber is spaced from the axis of the roller by a distance greater than the distance between the groove bottom of the annular groove and the axis of the roller.

According to the description, when the annular rubber is sleeved in the middle of the annular groove and a gap exists between the annular rubber and the annular groove, the annular rubber can be adaptively displaced and deformed along the arc surface of the annular groove under the impact action, so that the impact force can be quickly and effectively removed, the average service life of the components of the fender adopting the structure can be prolonged by 40-50% through tests, and the cost of the fender equipment in the processes of replacing the components and maintaining is greatly reduced.

In an alternative embodiment, the rollers include a first roller and a second roller, the first roller and the second roller are coaxially detachably connected, the first roller is provided with a first through hole which is rotatably connected with the mounting shaft along an axis, the second roller is provided with a second through hole which is rotatably connected with the mounting shaft along an axis, and the annular grooves include a first annular groove which is arranged on the first roller and a second annular groove which is arranged on the second roller.

The roller adopts a split structure design, so that the first roller and the second roller can be independently replaced and maintained, maintenance plans can be respectively made according to the difference of the aging damage degrees of the first roller and the second roller, and the cost is reduced. When the annular rubber mounting device is detached, the first roller or the second roller is detached from the mounting shaft, so that the first annular groove and the second annular groove are separated, the annular rubber can be taken out for replacement or maintenance, and the annular rubber mounting and detaching efficiency is improved.

In an alternative embodiment, the first roller is provided with a mounting boss along the axial direction, and the second roller is provided with a mounting groove matched with the mounting boss along the axial direction.

From the above description, the stability of the first roller and second roller matching structure can be improved through the matching of the assembling boss and the assembling groove, and the impact resistance reliability of the fender structure is improved.

In an alternative embodiment, the assembly boss is provided with an assembly external thread, and the assembly groove is provided with an assembly internal thread matched with the assembly external thread.

As can be seen from the above description, the external fitting thread and the internal fitting thread on the one hand constrain the first roller and the second roller for mutual connection therebetween and on the other hand enable the first roller and the second roller to abut against and separate from each other along the axis, which facilitates conversion of the impact force applied to the rollers in the radial direction into displacement in the axial direction to achieve relief of the impact force. And meanwhile, the screw assembly is adopted, so that the advantage of convenience in disassembly and assembly is also realized.

In an alternative embodiment, the inner wall of the through hole is provided with a ball bearing matched with the mounting shaft.

As can be seen from the above description, the ball bearings disposed around the mounting shaft function to reduce friction between the mounting shaft and the rollers, and facilitate conversion of the impact force applied to the rollers in the radial direction into rotation in the circumferential direction to achieve the relief of the impact force.

In an optional embodiment, the locking device further comprises a first locking plate, a second locking plate, a first elastic member and a second elastic member, wherein the first locking plate and the second locking plate are respectively arranged at two ends of the mounting shaft, one end of the roller abuts against the first locking plate through the first elastic member, and the other end of the roller abuts against the second locking plate through the second elastic member.

From the above description, the first locking plate and the second locking plate respectively support and position the first elastic member and the second elastic member at two ends of the mounting shaft, when the roller moves axially, the first elastic member or the second elastic member is compressed by the roller along the axis, so as to unload the force of the roller in the axial direction, and the roller after unloading is reset under the action of the first elastic member and the second elastic member, so as to ensure the reliability of the fender.

In an optional embodiment, the roller bearing further comprises a first base plate and a second base plate, the first base plate and the second base plate are both in sliding connection with the mounting shaft, the first base plate is abutted against one end of the roller by the first elastic piece, and the second base plate is abutted against the other end of the roller by the second elastic piece.

As can be seen from the above description, the first pad plate and the second pad plate are respectively located at both ends of the roller so that the first elastic member and the second elastic member are supported at both ends of the roller.

In an alternative embodiment, the surface of the roller is provided with a nipple penetrating to the through hole.

As can be seen from the above description, the oil injection channel of the beef nozzle plays a role in conveniently injecting oil into the through hole to ensure lubrication.

Referring to fig. 1 to fig. 2, a first embodiment of the present invention is: a rubber roller 2 fender comprises a mounting shaft 1, a roller 2 and annular rubber 3;

the mounting shaft 1 is cylindrical;

the roller 2 is provided with a through hole 21 which is rotationally connected with the mounting shaft 1 along the axis;

the side surface of the roller 2 is provided with an annular groove 22 with a minor arc-shaped cross section along the circumferential direction;

the annular rubber 3 is nested and matched with the annular groove 22, the section of the annular rubber 3 is circular, and the annular rubber 3 is of a solid structure;

the radius value of the cross section of the annular groove 22 is larger than that of the cross section of the annular rubber 3.

The ratio of the radius value of the annular groove 22 to the radius value of the annular rubber 3 is 1.3. The distance between the surface of the annular rubber 3 and the axis of the roller 2 is larger than the distance between the groove bottom of the annular groove 22 and the axis of the roller 2. The rollers 2 comprise a first roller 23 and a second roller 24, the first roller 23 and the second roller 24 are coaxially and detachably connected, the first roller 23 is provided with a first through hole 231 which is rotatably connected with the mounting shaft 1 along the axis, the second roller 24 is provided with a second through hole 241 which is rotatably connected with the mounting shaft 1 along the axis, the annular groove 22 comprises a first annular groove 221 which is arranged on the first roller 23 and a second annular groove 222 which is arranged on the second roller 24, and the first annular groove 221 and the second annular groove 222 are arranged in a mirror image mode. The first roller 23 is provided with an assembling boss 232 along the axial direction, the assembling boss 232 is columnar, and the second roller 24 is provided with an assembling groove 242 matched with the assembling boss 232 along the axial direction. The assembling boss 232 is provided with an assembling external thread, and the assembling groove 242 is provided with an assembling internal thread matched with the assembling external thread. The inner wall of the through hole 21 is provided with a ball bearing matched with the mounting shaft 1. Still include first locking plate 4, second locking plate 5, first elastic component 6 and second elastic component 7, first locking plate 4 with second locking plate 5 sets up respectively the both ends of installation axle 1, the one end of roller 2 is passed through first elastic component 6 supports and leans on first locking plate 4, the other end of roller 2 is passed through second elastic component 7 supports and leans on second locking plate 5. The first elastic member 6 and the second elastic member 7 are both springs. The first locking plate 4 and the second locking plate 5 are locked with the mounting shaft 1 through fasteners. Still include first backing plate 8 and second backing plate 9, first backing plate 8 with second backing plate 9 all with installation axle 1 sliding connection, first elastic component 6 will first backing plate 8 supports and leans on the one end of roller 2, second elastic component 7 will second backing plate 9 supports and leans on the other end of roller 2. The surface of the roller 2 is provided with a butter mouth 10 which penetrates to the through hole 21.

Referring to fig. 1 to fig. 2, a second embodiment of the present invention is different from the first embodiment in that: the ratio of the radius value of the annular groove 22 to the radius value of the annular rubber 3 is 1.4.

Referring to fig. 1 to fig. 2, a difference between the third embodiment of the present invention and the first embodiment is: the ratio of the radius value of the annular groove 22 to the radius value of the annular rubber 3 is 1.5.

Referring to fig. 1 to fig. 2, a fourth embodiment of the present invention is different from the first embodiment in that: the ratio of the radius value of the annular groove 22 to the radius value of the annular rubber 3 is 1.6.

In summary, the invention provides a rubber roller fender, when in installation, an annular rubber sleeve is sleeved and embedded in an annular groove, a roller is rotatably installed on an installation shaft, because the radius value of the section of the annular groove is larger than that of the section of the annular rubber, a rotary connection structure is adopted by matching the roller with the installation shaft, when the fender is impacted, the annular rubber sleeve can be adaptively deformed in the annular groove and displaced along the arc surface of the annular groove, and meanwhile, the roller can be adaptively rotated on the installation shaft, so that the impact force applied to the annular rubber in the radial direction is removed, and the annular rubber is prevented from being damaged due to extrusion and friction. The experiment proves that when the ratio of the radius value of the annular groove to the radius value of the annular rubber is in the range, the service life of the annular rubber can be prolonged by about 60 percent, and the damage degree of the ship steel structure in collision can be reduced by more than 50 percent. When the annular rubber is sleeved at the middle part of the annular groove and a gap exists between the annular rubber and the annular groove, the annular rubber can be adaptively displaced and deformed along the arc surface of the annular groove under the impact action, so that the impact force can be quickly and effectively removed, the average service life of the parts of the fender adopting the structure can be prolonged by 40-50% through testing, and the cost of the fender equipment in the process of replacing the parts and maintaining is greatly reduced. The roller adopts split type structural design, makes first roller and second roller independently change and maintain, can make the maintenance plan respectively to the difference that the damaged degree of ageing of first roller and second roller exists, reduce cost. When the annular rubber mounting device is detached, the first roller or the second roller is detached from the mounting shaft, so that the first annular groove and the second annular groove are separated, the annular rubber can be taken out for replacement or maintenance, and the annular rubber mounting and detaching efficiency is improved. The stability of the first roller and the second roller matching structure can be improved through the matching of the assembling boss and the assembling groove, and the impact resistance reliability of the fender structure is improved. The external assembling thread and the internal assembling thread are used for connecting and restraining the first roller and the second roller with each other on one hand, and enabling the first roller and the second roller to abut against and separate from each other along the axis on the other hand, so that the impact force applied to the rollers in the radial direction is converted into the displacement in the axial direction to achieve the unloading of the impact force. And meanwhile, the screw assembly is adopted, so that the advantage of convenience in disassembly and assembly is also realized. The ball bearing arranged around the mounting shaft plays a role in reducing friction between the mounting shaft and the roller, and is beneficial to converting the impact force of the roller on the radial direction into circumferential rotation so as to realize the unloading of the impact force. The first locking plate and the second locking plate respectively play a role in supporting and positioning the first elastic part and the second elastic part at two ends of the mounting shaft, when the roller moves axially, the first elastic part or the second elastic part is compressed by the roller along an axis, so that the axial force of the roller is relieved, and the roller after the force relief resets under the action of the first elastic part and the second elastic part, so that the reliability of the fender is ensured. The first backing plate and the second backing plate are respectively positioned at two ends of the roller so that the first elastic piece and the second elastic piece are supported at two ends of the roller. The oiling channel of the beef tallow nozzle plays a role in conveniently injecting oil into the through hole so as to ensure lubrication.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.