JP2023028967A - Sliding bearing device - Google Patents

Abstract

To provide a sliding bearing device which can suppress reduction in sliding performance caused by friction heat associated with sliding of a sliding material with respect to a sliding plate material.SOLUTION: A sliding bearing 34 made of synthetic resin forming an upper shoe sliding face 10a and a bearing holder 33 for holding the sliding bearing 34 are arranged on an upper shoe 10 of a sliding bearing device 1 which is constituted of the upper shoe 10 and a lower shoe 20 arranged in opposite portions of a first structure and a second structure. A concave attachment recess 331 for accommodating the sliding bearing 34 is formed in the bearing holder 33 in such a manner that the upper shoe sliding face 10 is exposed. An engagement protrusion 353 and an engagement groove 362 for fixing the sliding bearing 34 accommodated in the attachment recess 331 are formed in opposing portions. The engagement groove 362 formed in the sliding bearing 34 has an accommodation-direction groove part 363 which extends in an accommodation direction C, and a circumferential-direction groove part 364 which extends in a rotation direction R.SELECTED DRAWING: Figure 3

Description

The present invention relates to a sliding bearing device in a support structure that is arranged between an upper structure and a lower structure of a structure as a seismic isolation mechanism, for example, and supports the upper structure.

Conventionally, for example, as shown in Patent Document 1, there is a sliding bearing device that movably supports structures such as seismic isolation structures, bridges, and joints that connect fixed structures that generate vibration and relative displacement. . Such a sliding bearing device is disposed between a supported structure such as a main girder and a supporting structure such as a bridge pier, and has upper shoes fixed to the supported structure and fixed to the supporting structure. By sliding the boundary surface with the lower shoe, that is, the sliding surface, it can be supported so as to be displaceable in the in-plane direction of the boundary surface.

Specifically, the sliding bearing device described in Patent Document 1, in which the sliding surface of the lower shoe fixed to the upper surface of the supporting structure slides against the sliding surface fixed to the bottom surface of the supported structure, The sliding surface of the lower shoe is composed of a stainless steel sliding plate material, and the sliding surface of the upper shoe is composed of a synthetic resin sliding material.

JP-A-2000-170829

In the sliding bearing device constructed as described above, the synthetic resin sliding member slides on the stainless steel sliding plate member, and is heated by the frictional heat generated by the sliding of the sliding member against the sliding plate member.
Thus, when the sliding material and the sliding plate material are heated by frictional heat, the coefficient of friction of the sliding material changes, and the slidability changes. As a result, there is a problem that the desired slidability of the slide bearing cannot be ensured.

SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a sliding bearing device capable of suppressing a change in slidability due to frictional heat caused by sliding of a sliding member against a sliding plate member.

The present invention is composed of a first shoe and a second shoe that are disposed in opposing portions of a first structure and a second structure, respectively, and a sliding surface in the portion opposing the first shoe and the second shoe The first shoe of the sliding bearing device that slides against each other is provided with a synthetic resin sliding member that forms the sliding surface and a holding member that holds the sliding member, and the second shoe is: A sliding member that constitutes the sliding surface and on which the sliding member slides is provided, and the first shoe includes a contact portion that contacts at least one of the holding member and the sliding member. and a heat radiating member extending outward from the sliding bearing.

The first structure and the second structure are, for example, a bridge with a bridge pier as the first structure and a main girder as the second structure, a building as the first structure, and a connecting corridor that connects the buildings. A connecting passage as the second structure, a roof structure with a pillar as the first structure and a truss roof as the second structure, or an expansion with a building as the first structure and another building as the second structure It may be a structure in a structure. Alternatively, it may be a structure in which a rack on which a server is mounted is the first structure and a floor slab on which the rack is installed is the second structure.
The first shoe and the second shoe may be composed of a lower shoe and an upper shoe when the first structure and the second structure are arranged in the vertical direction.

According to the present invention, it is possible to suppress changes in slidability due to frictional heat that accompanies the sliding of the sliding material on the material to be slid.
More specifically, the first shoe provided with a synthetic resin sliding member and a holding member for holding the sliding member is the second shoe provided with a member to be slid on which the sliding member slides. , the sliding member provided on the first shoe and the member to be slid provided on the second shoe slide and are heated by frictional heat associated with the sliding.

However, since the first shoe is provided with a heat radiating member having a contact portion that contacts at least one of the holding member and the sliding member, and a heat radiating portion that extends outward from the contact portion, the heat generated by friction is reduced. The heat thus generated is conducted to the heat radiating member via the contact portion.
The heat dissipating member to which heat is conducted via the contact portion can radiate heat by the heat dissipating portion extending outward from the contact portion.

As described above, the frictional heat generated by the sliding material sliding against the material to be slid can be radiated to the outside by the heat radiating member. Gender change can be suppressed.

As an aspect of the present invention, the holding member has a holder that holds the sliding material, and a holding portion that is fixed to the first structure and that holds a part of the holder movably in a supporting direction. A holding member may be provided, and the contact portion of the heat radiating member may contact at least one of the holder and the sliding member.
The support direction is the direction in which one of the first structure and the second structure supports the other via the slide bearing, and is generally vertical.

According to this invention, heat can be efficiently radiated from the heat radiating member.
More specifically, since the abutting portion directly contacts at least one of the sliding member and the holder that holds the sliding member, the frictional heat generated by the sliding member sliding against the sliding member is efficiently dissipated. Heat can be conducted to the member to dissipate heat.

Further, as an aspect of the present invention, the contact portion may contact an outer peripheral surface of the holder, and the heat radiation portion may extend radially with respect to the holder.
According to this invention, the heat can be efficiently conducted to the heat radiating member via the abutting portion that abuts on the outer peripheral surface of the holder to radiate the heat.

Further, since the heat radiating portion extending outward from the contact portion extends in the radial direction with respect to the holder, it is formed large without interfering with sliding between the slidable member and the sliding member. A heat radiating surface can be secured, and heat can be radiated from the heat radiating member more efficiently.

Further, as an aspect of the present invention, the contact portion may be formed in a ring shape that contacts the outer peripheral surface of the holder.
According to the present invention, a large contact area between the holder and the contact portion can be ensured, so that heat can be more efficiently conducted to the heat radiating member to radiate heat.

In addition, since the abutting portion is in the shape of a ring that abuts against the outer peripheral surface of the holder, by attaching the abutting portion to the holder, the heat radiating member can be used safely without being accidentally dropped from the holder. can.

Further, as an aspect of the present invention, the fixed holding member may be provided with a loose fitting groove in which the heat radiating portion extending radially with respect to the holder is loosely fitted so as to be movable in the supporting direction.
According to this aspect of the invention, the heat radiating portion extending outward from the abutting portion is loosely fitted in the loose fitting groove provided in the fixed holding member. Instead, the heat radiating portion can be formed large, that is, a large heat radiating surface can be secured, and heat can be radiated from the heat radiating member more efficiently.

Further, as an aspect of the present invention, the holder is provided with an accommodation recess that accommodates a part of the sliding member, and the abutting portion is in contact with a portion of the sliding member that is accommodated in the accommodation recess, The heat radiation part may penetrate the holder and extend radially with respect to the sliding member.

According to this aspect of the invention, the contact portion contacts the sliding member that is directly heated by the frictional heat that accompanies sliding on the member to be slid. Therefore, it is possible to further dissipate heat from the heat dissipating member.
In addition, since the sliding member is accommodated in the accommodating portion of the holder and the abutting portion is in contact with the accommodated portion that is difficult to dissipate heat, the temperature reduction of the sliding member can be accelerated by the heat radiating member.

Furthermore, since the heat radiating portion penetrates the holder and extends in the radial direction with respect to the sliding member, the heat radiating portion is formed large without interfering with sliding between the slidable member and the sliding member. In other words, a large heat radiation surface can be secured, and heat can be efficiently radiated from the heat radiation member.

Moreover, as a mode of this invention, the said contact part may be formed in the shape which covers the said to-be-accommodated part.
According to this aspect of the invention, since the abutment portion covers the accommodated portion, a large abutment area between the sliding member and the abutment portion can be ensured, and heat can be more efficiently conducted to the heat radiating member and radiated.

In addition, since the abutting portion covers the portion to be accommodated in the accommodating recess, that is, the abutting portion is interposed between the accommodating recess and the to-be-accommodated portion, heat conduction from the sliding member to the holder is suppressed. Then, heat can be conducted to the heat radiating member via the contact portion, and the heat can be efficiently radiated.

Further, as an aspect of the present invention, the fixing and holding member is provided with a loose fitting groove extending in a radial direction with respect to the sliding member and into which the heat radiating portion penetrating the holder is loosely fitted so as to be movable in the supporting direction. good too.
According to this invention, since the heat radiating portion extending radially with respect to the sliding member and penetrating the holder is loosely fitted in a loose fitting groove provided in the fixed holding member, the holder is supported with respect to the fixed holding member. The heat radiating portion can be formed large, that is, a large heat radiating surface can be ensured, and heat can be radiated from the heat radiating member more efficiently without interfering with movement in the direction.

According to the present invention, it is possible to provide a sliding bearing device capable of suppressing changes in slidability due to frictional heat that accompanies sliding of a sliding member on a sliding plate member.

Explanatory drawing of the slide bearing apparatus of 1st Example. Explanatory drawing of the slide bearing apparatus of 1st Example. 1 is an exploded perspective view of a slide bearing device according to a first embodiment; FIG. Explanatory drawing of the sliding bearing apparatus of 2nd Example. Explanatory drawing of the sliding bearing apparatus of 2nd Example. FIG. 11 is an exploded perspective view of the slide bearing device of the second embodiment; Explanatory drawing of the slide bearing apparatus of 3rd Example. Explanatory drawing of the slide bearing apparatus of 3rd Example. FIG. 11 is an exploded perspective view of a slide bearing device according to a third embodiment; Explanatory drawing of the slide bearing apparatus of 4th Example. Explanatory drawing of the slide bearing apparatus of 4th Example. FIG. 11 is an exploded perspective view of a slide bearing device according to a fourth embodiment; FIG. 11 is an exploded perspective view of a slide bearing device according to a fourth embodiment;

An embodiment of the invention will be described below with reference to the drawings.
FIG. 1 shows an explanatory view of the sliding bearing device 1 of the first embodiment, FIG. 2 shows an explanatory drawing of the sliding bearing device 1 of the first embodiment, and FIG. 3 shows an exploded view of the sliding bearing device 1 of the first embodiment. Fig. 3 shows a perspective view;

Specifically, FIG. 1(a) shows a front view of the sliding bearing device 1, and FIG. 1(b) shows a longitudinal sectional view of the sliding bearing device 1. As shown in FIG. 2(a) shows a perspective view of the sliding bearing device 1 from above, and FIG. 2(b) shows a perspective view of the sliding bearing device 1 from below. In addition, in FIG.2(b), the sole plate 21 is illustrated in the transparent state. 1 to 3 is referred to as a vertical direction H. As shown in FIG.

The sliding bearing device 1 is a seismic isolation device that is disposed between an upper structure and a lower structure to form a seismic isolation structure. The boundary surface (10a, 20a) of the upper shoe 10 and the lower shoe 20, that is, the sliding surface (10a, 20a) slides to displace in the in-plane direction of the boundary surface (sliding surface). It can be supported as much as possible, for example, it can absorb vibration energy caused by an earthquake, strong wind, etc., and can be seismically isolated.

Specifically, as shown in FIG. 1, the slide bearing device 1 comprises an upper shoe 10 fixed to the bottom surface 101 of the upper structure 100 and a lower shoe 20 fixed to the upper surface 201 of the lower structure 200. ing.
Specifically, the lower shoe 20 includes a sole plate 21 fixed to the upper surface 201 of the lower structure 200, and a slide plate 22 attached to the sole plate 21. On the upper surface of the slide plate 22, an upper shoe (to be described later) is mounted. 10, a lower shoe sliding surface 20a that slides with the upper shoe sliding surface 10a. Note that the slide plate 22 is made of a stainless steel plate.

The upper shoe 10 is composed of a steel base pot 11 fixed to the bottom surface 101 of the upper structure 100, and a circular sliding portion 30 arranged in a mounting recess 113 in the center of the bottom side of the base pot 11. are doing.
The base pot 11 is composed of a base portion 111 that is circular in plan view and a circular small diameter portion 112 that is arranged on the lower surface side of the base portion 111 and has a smaller diameter than the base portion 111 . A mounting recess 113 that is a cylindrical space with an open bottom is provided on the bottom side of the small-diameter portion 112 .

The sliding portion 30 mounted in the mounting recess 113 of the base pot 11 includes, as shown in FIG. .
A shim or seal ring may be provided between the elastic plate 31 and the assembled bearing 32 in the sliding portion 30 . Also, the elastic plate 31 may not be provided.

The elastic plate 31 is a rubber plate that is circular in plan view.
As described above, the elastic plate 31 is accommodated in the mounting recess 113 of the pedestal 111 together with the upper portion of the bearing holder 33 of the assembled bearing 32 and is formed in a disc shape with a slightly smaller diameter than the mounting recess 113 .

The assembly bearing 32 is accommodated in the mounting recess 113 and constitutes the upper shoe sliding surface 10a, and is constructed by assembling a bearing holder 33 and a slide bearing 34, which will be described later.

The bearing holder 33 is made of stainless steel and has a substantially cylindrical shape, and is formed to have the same diameter as the elastic plate 31 .
The bearing holder 33 is mounted in the mounting recess 113 of the base pot 11 together with the elastic plate 31 as described above, and is formed higher than the depth of the mounting recess 113 .

Further, the bearing holder 33 has a mounting recess 331 for mounting and holding the slide bearing 34 on the bottom side.
The mounting recess 331 is a cylindrical space that is shallower than the thickness of the slide bearing 34 and has an open bottom.

The slide bearing 34 has a self-lubricating property and a surface made of PTFE with a low coefficient of friction. A lower shoe sliding surface 20a, which is the surface of the slide plate 22, and an upper shoe sliding surface 10a that slides are configured.

In addition, the slide bearing 34 is formed in a disk-like shape with a height that protrudes downward from the mounting recess 331 when it is mounted in the mounting recess 331 of the bearing holder 33 , and the portion that is accommodated in the mounting recess 331 . is used as the accommodated portion 342 .
The bearing holder 33 and the slide bearing 34 configured as described above are bonded and fixed to the upper surface of the slide bearing 34 accommodated in the mounting recess 331 to form the assembled bearing 32 .

The heat radiating member 40 is attached to the outer peripheral surface 332 of the bearing holder 33 and radiates heat generated in the sliding portion 30 .
Specifically, the contact plate portion 41 that contacts the outer peripheral surface 332 of the bearing holder 33 and the heat dissipation plate portion 42 that extends from the contact plate portion 41 form a substantially T shape in plan view.

The contact plate portion 41 is formed of a metal plate having a predetermined thickness and having an arc shape in plan view along the outer peripheral surface 332 of the bearing holder 33 which is circular in plan view.

The radiator plate portion 42 is made of a metal plate having a predetermined thickness and extending outward from the widthwise center of the contact plate portion 41 . The radiator plate portion 42 is arranged to extend along the radial direction of the bearing holder 33 when the contact plate portion 41 is attached to the outer peripheral surface 332 of the bearing holder 33 .

Further, the heat radiating member 40 has a height at which the bearing holder 33 protrudes downward from the lower end of the small diameter portion 112 in a state of being mounted in the mounting recess 113 of the small diameter portion 112 , that is, 2/2 to the height of the bearing holder 33 . It is formed to a height of about 3.

The heat dissipating member 40 configured in this manner is attached to the outer peripheral surface 332 of the bearing holder 33 so that the bottom surface of the bearing holder 33 and the lower end portion of the heat dissipating member 40 substantially coincide with each other.
A plurality of heat radiating members 40 are provided, and each of the plurality of heat radiating members 40 is arranged at predetermined intervals in the circumferential direction.

The slide bearing 34 is arranged in the mounting recess 331 of the bearing holder 33 and fixed by adhesion, and the contact plate portion 41 of the heat radiating member 40 is attached to the bearing holder 33 . It is mounted in contact with the outer peripheral surface 332 .
Then, the elastic plate 31 is arranged on the upper surface of the bearing holder 33, arranged in the mounting recess 113 of the base pot 11, and the upper shoe 10 is assembled.

Also, the slide plate 22 is mounted on the upper surface of the sole plate 21 and the shoe 20 is assembled.
The pedestal portion 111 of the base pot 11 of the upper shoe 10 configured in this way is fixed to the bottom surface 101 of the upper structure 100, the upper shoe 10 is arranged on the upper structure 100, and the sole plate 21 of the lower shoe 20 is attached to the lower part. The lower shoe 20 is placed on the lower structure 200 by being fixed to the upper surface 201 of the structure 200 . As a result, the upper shoe sliding surface 10a of the upper shoe 10 provided on the upper structure 100 and the lower shoe sliding surface 20a of the lower shoe 20 provided on the lower structure 200 are configured to slide. The device 1 can be assembled.

As described above, the slide bearing device 1 is composed of the upper shoe 10 and the lower shoe 20 which are arranged at the opposing portions of the upper structure 100 and the lower structure 200, respectively. A slide bearing 34 made of synthetic resin that forms the upper shoe sliding surface 10a, and a base pot 11 that holds the slide bearing 34 in the upper shoe 10 of the sliding support device 1 in which the sliding surfaces 10a and 20a in the portion slide against each other. and a bearing holder 33 are provided, and the lower shoe 20 is provided with a slide plate 22 that constitutes the lower shoe sliding surface 20a and on which the slide bearing 34 slides, and the upper shoe 10 is provided with the bearing holder 33. Since the heat dissipating member 40 having the abutting plate portion 41 in contact with the heat dissipating plate portion 42 extending outward from the abutting plate portion 41 is provided, the frictional heat caused by the sliding of the slide bearing 34 with respect to the slide plate 22 is eliminated. It is possible to suppress the change in slidability due to

More specifically, the slide bearing 34 made of synthetic resin, the base pot 11 and the bearing holder 33 that hold the slide bearing 34 are provided, and the upper shoe 10 is provided with the slide plate 22 on which the slide bearing 34 slides. When it moves relative to the shoe 20, the slide bearing 34 provided on the upper shoe 10 slides against the slide plate 22 provided on the lower shoe 20, and heat is generated by frictional heat associated with the sliding.

However, since the upper shoe 10 is provided with the heat radiating member 40 having the contact plate portion 41 that contacts the bearing holder 33 and the heat radiating plate portion 42 that extends outward from the contact plate portion 41, the friction occurs due to friction. The heat thus generated is thermally conducted to the heat radiating member 40 via the contact plate portion 41 .
The heat dissipating member 40 to which heat is conducted via the contact plate portion 41 can dissipate heat through the heat dissipating plate portion 42 extending outward from the contact plate portion 41 .

As described above, the heat dissipation member 40 can dissipate the frictional heat generated by the sliding of the slide bearing 34 with respect to the slide plate 22 to the outside. Can suppress changes in dynamics

The upper shoe 10 has a bearing holder 33 that holds the slide bearing 34, and a base that has a mounting recess 113 that is fixed to the upper structure 100 and that accommodates a part of the bearing holder 33 so as to be movable in the vertical direction H. Since the pot 11 is provided and the contact plate portion 41 of the heat radiating member 40 is in contact with the bearing holder 33 , heat can be efficiently radiated from the heat radiating member 40 .

More specifically, since the contact plate portion 41 directly contacts the bearing holder 33 that holds the slide bearing 34 , the frictional heat generated by the slide bearing 34 sliding against the slide plate 22 is efficiently transferred to the heat dissipation member 40 . It can conduct heat and dissipate heat.

Further, the contact plate portion 41 contacts the outer peripheral surface 332 of the bearing holder 33 , and the heat radiation plate portion 42 extends in the radial direction with respect to the bearing holder 33 and thus contacts the outer peripheral surface 332 of the bearing holder 33 . Heat can be efficiently conducted to the heat radiating member 40 via the contact plate portion 41 to radiate the heat.

In addition, since the heat radiating plate portion 42 extending outward from the contact plate portion 41 extends radially with respect to the bearing holder 33, the slide plate 22 and the slide bearing 34 are formed large enough to slide freely. In other words, a large heat radiation surface can be secured, and heat can be radiated from the heat radiation member 40 more efficiently.

Next, the slide bearing device 1a of the second embodiment will be described below with reference to FIGS. 4 to 6. FIG. In addition, in the slide bearing device 1a of the second embodiment, the same reference numerals are given to the same structures as the above-described slide bearing device 1, and the description of the structure is omitted.

FIG. 4 shows an explanatory view of the sliding bearing device 1a of the second embodiment, FIG. 5 shows an explanatory drawing of the sliding bearing device 1a of the second embodiment, and FIG. 6 shows an exploded view of the sliding bearing device 1a of the second embodiment. Fig. 3 shows a perspective view;
Specifically, FIG. 4(a) shows a front view of the sliding bearing device 1a, and FIG. 4(b) shows a longitudinal sectional view of the sliding bearing device 1a. FIG. 5(a) shows a perspective view of the sliding bearing device 1a from above, and FIG. 5(b) shows a perspective view of the sliding bearing device 1a from below. In addition, in FIG.5(b), the sole plate 21 is illustrated in the transparent state.

In the sliding bearing device 1 described above, a plurality of heat dissipating members 40 composed of the contact plate portion 41 and the heat dissipating plate portion 42 are attached to the outer peripheral surface 332 of the bearing holder 33. It has a member 40a. It should be noted that the sliding bearing device 1a only has a heat radiating member 40a instead of the heat radiating member 40 of the sliding bearing device 1, and the rest of the configuration is the same as that of the sliding bearing device 1, so the description thereof will be omitted. do.

Specifically, the heat radiating member 40a includes a ring body 43 that fits around the outer peripheral surface 332 of the bearing holder 33, and a plurality of heat radiating plate portions 42 are arranged at predetermined intervals in the circumferential direction with respect to the ring body 43. Configure.
The heat dissipating member 40 a configured in this way can be attached to the bearing holder 33 by fitting it on the outer peripheral surface 332 of the bearing holder 33 .

The sliding bearing device 1a provided with the heat radiating member 40a in this manner has the same effects as the above-described sliding bearing device 1, and the ring body 43 is formed in a ring shape to contact the outer peripheral surface 332 of the bearing holder 33. Therefore, a large contact area between the bearing holder 33 and the ring body 43 can be ensured, and heat can be more efficiently conducted to the heat radiating member 40a to radiate the heat.

In addition, since the ring body 43 has a ring shape that abuts on the outer peripheral surface 332 of the bearing holder 33, the heat radiation member 40a can be prevented from accidentally falling off the bearing holder 33 by attaching the ring body 43 to the bearing holder 33. , the sliding bearing 1a can be used safely.

Next, a sliding bearing device 1b of a third embodiment will be described below with reference to FIGS. 7 to 9. FIG. The same reference numerals are assigned to the same components as those of the sliding bearing device 1 described above, and the description of the configuration is omitted.

FIG. 7 shows an explanatory view of the sliding bearing device 1b of the third embodiment, FIG. 8 shows an explanatory drawing of the sliding bearing device 1b of the third embodiment, and FIG. 9 shows an exploded view of the sliding bearing device 1b of the third embodiment. Fig. 3 shows a perspective view;
Specifically, FIG. 7(a) shows a front view of the sliding bearing device 1b, and FIG. 7(b) shows a longitudinal sectional view of the sliding bearing device 1b. FIG. 8(a) shows a perspective view of the sliding bearing device 1b from above, and FIG. 8(b) shows a perspective view of the sliding bearing device 1b from below. In addition, in FIG.8(b), the sole plate 21 is illustrated in the transparent state.

In the sliding bearing device 1 described above, the height at which the bearing holder 33 protrudes below the lower end of the small diameter portion 112 when the heat radiating member 40 is mounted in the mounting recess 113 of the small diameter portion 112, that is, the height of the bearing holder 33 is However, the heat radiating member 40b in the sliding bearing device 1b is formed at substantially the same height as the bearing holder 33.

When the heat dissipating member 40b is mounted on the outer peripheral surface 332 so that the bottom surface of the bearing holder 33 and the lower end of the heat dissipating member 40b are aligned, the heat dissipating plate portion 42 of the heat dissipating member 40b becomes a base pot that accommodates the bearing holder 33 in the mounting recess 113. 11 will bite into the small diameter portion 112 . Therefore, a slide groove 114 is provided in the small diameter portion 112 to allow the heat sink portion 42 to be fitted.
The slide grooves 114 are provided corresponding to the heat sink portions 42 of the heat sink members 40 b that are arranged with a predetermined interval on the outer peripheral surface 332 of the bearing holder 33 .

The assembled bearing 32 whose upper portion is accommodated in the mounting recess 113 is accommodated so as to be slidable in the vertical direction H with respect to the base pot 11 . Therefore, the heat dissipation member 40b attached to the outer peripheral surface 332 of the bearing holder 33 constituting the assembly bearing 32 also slides in the vertical direction H with respect to the base pot 11 as the assembly bearing 32 slides.
Therefore, the slide groove 114 is formed so that the radiator plate portion 42 to be fitted can slide in the vertical direction H, that is, the groove width is such that the radiator plate portion 42 is loosely fitted.

As described above, except that the heat radiating member 40b is formed higher than the heat radiating member 40 of the slide bearing device 1 and that the small diameter portion 112 is provided with the slide groove 114, the rest of the configuration of the slide bearing device 1b is a slide bearing. Since it is the same as the device 1, its description is omitted.

As described above, the sliding bearing device 1b, in which the heat radiating member 40b is formed higher than the heat radiating member 40 of the sliding bearing device 1 and the slide groove 114 is provided in the small diameter portion 112, has the same effect as the sliding bearing device 1 described above. In addition, the base pot 11 is provided with a slide groove 114 in which the radiator plate portion 42 extending radially with respect to the bearing holder 33 is loosely fitted so as to be movable in the vertical direction H. The heat radiating plate portion 42 extending outward can be loosely fitted in the slide groove 114 provided in the base pot 11 . Therefore, the heat dissipation plate portion 42 can be formed large without interfering with the movement of the bearing holder 33 in the vertical direction H with respect to the base pot 11, that is, a large heat dissipation surface can be secured, and heat can be efficiently dissipated from the heat dissipation member 40b. .

Next, a sliding bearing device 1c of a fourth embodiment will be described below with reference to FIGS. 10 to 12. FIG. The same reference numerals are assigned to the same structures as those of the sliding bearing devices 1, 1a, and 1b described above, and the description of the structures is omitted.

FIG. 10 shows an explanatory view of the sliding bearing device 1c of the fourth embodiment, FIG. 11 shows an explanatory drawing of the sliding bearing device 1c of the fourth embodiment, and FIG. 12 shows the top of the sliding bearing device 1c of the fourth embodiment. 13 shows an exploded perspective view from below of the sliding bearing device 1c of the fourth embodiment.

Specifically, FIG. 10(a) shows a front view of the sliding bearing device 1c, and FIG. 10(b) shows a longitudinal sectional view of the sliding bearing device 1c. FIG. 11(a) shows a perspective view of the sliding bearing device 1c from above, and FIG. 11(b) shows a perspective view of the sliding bearing device 1c from below. In addition, in FIG.11(b), the sole plate 21 is illustrated in the transparent state.

In the sliding bearing devices 1, 1a, and 1b described above, the contact plate portion 41 and the ring body 43 of the heat radiating members 40, 40a, and 40b are mounted on the outer peripheral surface 332 of the bearing holder 33, and the upper shoe 10 is positioned relative to the lower shoe 20. Frictional heat generated by the sliding is dissipated from the heat dissipating members 40, 40a, and 40b. On the other hand, in the slide bearing device 1c, the heat of the slide bearing 34 heated by the above sliding is radiated from the heat radiating member 40c.

Specifically, the heat radiating member 40c includes a covering portion 44 that abuts on the slide bearing 34 so as to cover the accommodated portion 342 that is accommodated in the mounting recess 331 of the bearing holder 33c, and a heat radiating member extending outward from the covering portion 44. It is composed of a plate portion 42c.

The covering portion 44 is composed of a planar circular upper surface portion 441 facing the upper surface of the slide bearing 34 and a side portion 442 extending downward from the outer edge of the upper surface portion 441 and facing the side peripheral surface of the slide bearing 34 . .

As shown in FIG. 12, the radiator plate portion 42c is formed in a plate shape extending upward and radially outward across the upper surface portion 441 and the side portion 442 of the covering portion 44 . The heat sink portion 42c is formed to have the same height as the heat sink portion 42 of the heat sink member 40 in the slide bearing device 1 described above.
A plurality of heat sink portions 42c configured in this manner are arranged radially with respect to the cover portion 44 at equal intervals in the circumferential direction.

When the slide bearing 34, in which the housing portion 342 is covered with the heat radiating member 40c configured as described above, is placed in the mounting recess 331 of the bearing holder 33c, the heat radiating plate portion 42c penetrates the bearing holder 33c in the radial direction. , the bearing holder 33c is provided with a slit 333 through which the heat sink portion 42c passes.
The slits 333 are provided at positions corresponding to the number and arrangement of the heat radiating plate portions 42c of the heat radiating member 40c.

In the sliding bearing device 1c using the heat radiating member 40c constructed in this manner, the heat radiating member 40c is mounted in advance on the receiving portion 342 of the slide bearing 34, and then the slide bearing 34 is mounted in the mounting recess 331 of the bearing holder 33c. do. Alternatively, after mounting the heat radiating member 40c in the mounting recess 331 of the bearing holder 33c, it is possible to assemble by mounting the slide bearing 34 in the slit 333 in which the heat radiating member 40c is arranged. At this time, the circumferential direction is aligned so that the heat radiating plate portion 42c of the heat radiating member 40c is fitted into the slit 333 provided in the bearing holder 33c.

As described above, the sliding bearing device 1c including the heat radiating member 40c having the covering portion 44 covering the accommodated portion 342 of the slide bearing 34 mounted in the mounting recess 331 has the same effects as the sliding bearing device 1 described above. At the same time, the bearing holder 33c is provided with a mounting recess 331 for housing the received portion 342 of the slide bearing 34, and the covering portion 44 abuts on the received portion 342 received in the mounting recess 331 of the slide bearing 34 to dissipate heat. Since the plate portion 42 c penetrates the bearing holder 33 c and extends in the radial direction with respect to the slide bearing 34 , the plate portion 42 c is directly heated by frictional heat caused by sliding on the slide plate 22 . contact, and heat can be further conducted by the heat radiating member 40c through the covering portion 44. As shown in FIG. Therefore, heat can be further radiated from the heat radiating member 40c.

In addition, in the slide bearing 34, the covered portion 44 is in contact with the accommodated portion 342, which is accommodated in the mounting recess 113 of the bearing holder 33c and is difficult to dissipate heat. can be done.

Furthermore, since the radiator plate portion 42c penetrates the slit 333 of the bearing holder 33c and extends radially with respect to the slide bearing 34, the sliding between the slide plate 22 and the slide bearing 34 is not hindered. The radiator plate portion 42c can be formed large, that is, a large heat radiation surface can be secured, and the heat can be more efficiently radiated from the heat radiation member 40c.

Further, since the covering portion 44 is formed in a shape that covers the accommodated portion 342, the covering portion 44 covers the accommodated portion 342, and a large contact area between the slide bearing 34 and the covering portion 44 can be ensured. . Therefore, it is possible to more efficiently conduct heat to the heat radiating member 40c and radiate the heat.

In addition, since the covering portion 44 covers the accommodated portion 342 accommodated in the mounting recess 331 , that is, the covering portion 44 is interposed between the mounting recess 331 and the accommodated portion 342 , the slide bearing 34 is separated from the bearing holder. Heat can be efficiently radiated by suppressing heat conduction to 33c and conducting heat to the heat radiating member 40c via the covering portion 44. As shown in FIG.

As described above, in the correspondence between the configuration of the present invention and the above-described embodiments, the first structure of the present invention corresponds to the upper structure 100 of the embodiment,
and so on,
The second structure corresponds to the substructure 200,
The first shoe corresponds to upper shoe 10,
The second shoe corresponds to the lower shoe 20,
The sliding surfaces correspond to the sliding surfaces 10a, 20a, the upper shoe sliding surface 10a, and the lower shoe sliding surface 20a,
The sliding material corresponds to the slide bearing 34,
The holding member corresponds to the base pot 11 and the bearing holder 33,
The material to be slid corresponds to the slide plate 22,
The contact portion corresponds to the contact plate portion 41, the ring body 43, and the covering portion 44,
The heat radiating portion corresponds to the heat radiating plate portions 42 and 42c,
The heat dissipating members correspond to the heat dissipating members 40, 40a, 40b, and 40c,
The sliding bearing devices correspond to the sliding bearing devices 1, 1a, 1b, and 1c,
The holder corresponds to the bearing holders 33, 33c,
The fixed holding member corresponds to the base pot 11,
The accommodation portion corresponds to the mounting recess 113,
The loose fitting groove corresponds to the slide groove 114,
The accommodation recess corresponds to the mounting recess 331,
The accommodated portion corresponds to the accommodated portion 342,
Although the support direction corresponds to the vertical direction H, it is not limited to the above embodiment.

For example, in the above description, the heat radiation plate portion 42c of the heat radiation member 40c of the sliding bearing device 1c is formed to have the same height as the heat radiation plate portion 42 of the heat radiation member 40 of the sliding bearing device 1, but the sliding bearing device 1b It may be formed to have a height approximately equal to that of the heat radiating plate portion 42 in the heat radiating member 40b. In this case, the slide groove 114 is provided in the base pot 11, similarly to the sliding bearing device 1b.

In this case also, the base pot 11 is provided with the slide groove 114 in which the radiator plate portion 42c extending radially with respect to the slide bearing 34 is loosely fitted so as to be movable in the vertical direction H. The heat radiating plate portion 42c extending through the base pot 11 can be loosely fitted in the slide groove 114 provided in the base pot 11. As shown in FIG. Therefore, the heat radiation plate portion 42c can be formed large, that is, a large heat radiation surface can be secured, and heat can be efficiently radiated from the heat radiation member 40c without interfering with the movement of the assembly bearing 32 in the vertical direction H with respect to the base pot 11. can.

Further, instead of the covering portion 44 of the heat radiating member 40c in the sliding bearing device 1c, the heat radiating member 40a is formed in a ring shape like the ring body 43, and is configured to be fitted on the outer peripheral surface of the slide bearing 34 to be mounted. may

Also, the heat radiation member 40a of the slide bearing device 1a may be formed to have the same height as the heat radiation plate portion 42 of the heat radiation member 40b of the slide bearing device 1b, and the slide groove 114 may be provided in the base pot 11. As a result, the base pot 11 is provided with a slide groove 114 in which the radiator plate portion 42 extending radially with respect to the bearing holder 33 is loosely fitted so as to be movable in the vertical direction H. The extending radiator plate portion 42 can be loosely fitted in the slide groove 114 provided in the base pot 11 . Therefore, it is possible to form the heat radiating plate portion 42 large, that is, to ensure a large heat radiating surface, and to efficiently radiate heat from the heat radiating member 40b without interfering with the movement of the assembly bearing 32 in the vertical direction H with respect to the base pot 11. can.

1, 1a, 1b, 1c Sliding bearing device 10 Upper shoe 10a Upper shoe sliding surface 11 Base pot 20 Lower shoe 20a Lower shoe sliding surface 22 Slide plates 33, 33c Bearing holder 34 Slide Bearings 40, 40a, 40b, 40c Heat radiating member 41 Contact plate portions 42, 42c Heat radiating plate portion 43 Ring body 44 Coating portion 100 Upper structure 113 Mounting recess 114 Slide groove 342 Accommodated portion

Claims (6)

Consists of a first shoe and a second shoe arranged at respective opposing portions of the first structure and the second structure,
The first shoe of a slide bearing device in which the sliding surfaces of the facing portions of the first shoe and the second shoe slide against each other, a synthetic resin sliding material forming the sliding surface, and the sliding material and a holding member that holds the
The second shoe is provided with a material to be slid that constitutes the sliding surface and on which the sliding material slides,
In the first shoe,
A sliding support device comprising a heat radiating member having a contact portion that contacts at least one of the holding member and the sliding member, and a heat radiating portion that extends outward from the contact portion. The holding member is
a holder that holds the sliding material;
a fixed holding member that is fixed to the first structure and has an accommodation portion that accommodates a portion of the holder movably in the support direction;
2. The slide bearing device according to claim 1, wherein said contact portion of said heat radiating member contacts at least one of said holder and said sliding member. The contact portion is
contacting the outer peripheral surface of the holder,
3. The sliding bearing device according to claim 2, wherein said heat radiating portion extends radially with respect to said holder. on the fixed holding member,
4. The slide bearing device according to claim 3, wherein a loose fitting groove is provided in which said heat radiating portion extending radially with respect to said holder is loosely fitted so as to be movable in said supporting direction. The holder is provided with an accommodation recess that accommodates a portion of the sliding material,
The abutting portion abuts on a portion of the sliding member to be accommodated in the accommodating recess,
3. The sliding bearing device according to claim 2, wherein the heat radiating portion penetrates the holder and extends radially with respect to the sliding member. on the fixed holding member,
6. The sliding bearing device according to claim 5, further comprising a loose fitting groove extending radially with respect to said sliding member and into which said heat radiating portion penetrating said holder is loosely fitted so as to be movable in said supporting direction.

Images