CN212477286U

CN212477286U - Movable hinge shaft support for straddle type monorail steel beam

Info

Publication number: CN212477286U
Application number: CN202020980933.2U
Authority: CN
Inventors: 王辉; 郭风琪; 曾令燚
Original assignee: Hunan Baiyu Construction Engineering Consulting Co ltd
Current assignee: Hunan Baiyu Construction Engineering Consulting Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-02-05
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a movable hinge shaft support for a straddle type monorail steel beam, which comprises an upper support, a rotating shaft and a lower support, wherein the upper support comprises an upper bottom plate and a plurality of lug plates arranged at the bottom of the upper bottom plate along the axis of the steel beam, hinge holes coaxially arranged are horizontally arranged on the lug plates, and the axes of the hinge holes are vertically arranged with the axis of the steel beam; the bottom bracket includes that bottom plate and a plurality of along the girder steel axis arrange in the grip block at bottom plate top, is equipped with on the grip block that corresponds the department with the hinge hole and arranges in rectangular hole along the girder steel axis, and the bottom plate rigid coupling is at the pier stud top, and the upper plate rigid coupling is in girder steel expansion end bottom, and the otic placode cartridge is between two adjacent grip blocks, and rotatable the installing of pivot is in rectangular hole and hinge hole and the pivot can slide along the girder steel axis in rectangular hole. The utility model discloses a realize pivot and upper bracket relative slip on the undersetting through rectangular hole, simple structure, it is low to make, installation cost, and girder steel beam-ends moment of flexure diminishes, and the structure atress is clear and definite, reduces stress concentration's phenomenon.

Description

Movable hinge shaft support for straddle type monorail steel beam

Technical Field

The utility model belongs to the technical field of equipment engineering, especially, relate to a stride single track of sitting single track girder steel with activity hinge support.

Background

The small train for tour and sightseeing is driven by the driving transmission system to realize the walking of the small train. Because the small train mainly runs in scenic spots with more people flowing, in order to ensure the safety, the small train basically adopts a rail type structure, and the rail is formed by connecting a plurality of steel beams arranged on the ground.

In order to prevent the steel beam from cracking or damaging due to climate temperature changes (thermal expansion and cold contraction), one end of the existing steel beam is bolted with a beam column, and the other end is connected with a pressing block in a sliding manner. Wherein, the beam column bolting generally adopts high-strength bolts to bolt a steel beam bottom plate and a pier column top plate; the pressing block sliding connection generally adopts the pressing block to press the steel beam bottom plate, the high-strength bolt bolts the pressing block and the pier stud top plate, and the steel beam only allows forward-bridge-direction translation.

After long-term practice, we find that the steel beam connecting structure mainly has the following defects:

1. in the beam-column bolting structure, the stress and deformation of the steel beam are between the simply supported beam and the fixed beam, the rotational freedom is restricted, the calculation is complex and difficult to be accurate, and the local stress concentration degree is high; the bending moment of the steel beam is transmitted to the pier column, so that the pier column is stressed greatly, the structure size is increased, and the construction cost is increased; the installation process is loaded down with trivial details, and it is higher to bolt hole machining precision requirement, increases the installation cost, the extension time limit for a project.

2. In the sliding connection structure of the pressing block, the stress and deformation of the steel beam are between the simply supported beam and the fixed beam, and the degree of rotational freedom constraint is difficult to calculate accurately; the bending moment of the steel beam is transmitted to the pier column, so that the pier column is stressed greatly, the structure is complex, and the construction cost is increased; the installation process is loaded down with trivial details, and the contact of briquetting and girder steel is because precision error, and the actual atress is often line contact or point contact, and local stress concentration degree is high.

In the field installation process, a construction unit also solves the problems by installing a sliding connecting piece between the movable end of the steel beam and the pier stud, but the sliding connecting piece is basically formed by combining a plurality of parts, the structure is slightly complicated, and the manufacturing cost is also higher.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide one kind not only stress concentration is few, easy to maintain and change, and simple structure, cost of manufacture are low strides sitting form single track movable hinge support for girder steel.

The utility model provides a movable hinge shaft support for a straddle type monorail steel beam, which is arranged between a movable end of the steel beam and a pier stud and comprises an upper support, a rotating shaft and a lower support, wherein the upper support comprises an upper bottom plate and a plurality of lug plates arranged at the bottom of the upper bottom plate along the axis of the steel beam, hinge holes which are coaxially arranged are horizontally arranged on the lug plates, and the axis of each hinge hole is perpendicular to the axis of the steel beam; the undersetting includes that lower plate and a plurality of along the girder steel axis arrange in the grip block at lower plate top, be equipped with on the grip block that corresponds the department with the hinge hole and arrange at rectangular hole along the girder steel axis, the lower plate rigid coupling is at the pier stud top, the upper plate rigid coupling is in girder steel expansion end bottom, the otic placode cartridge is between two adjacent grip blocks, rectangular hole and hinge hole are arranged in same horizontal plane, the pivot is rotatable install in rectangular hole and hinge hole and the pivot can slide at rectangular downthehole along the girder steel axis, the upper bracket rotates and sliding connection through the pivot on the undersetting.

In order to reduce the friction resistance when the rotating shaft slides on the lower support, a self-lubricating shaft sleeve is sleeved on the rotating shaft in the strip hole.

In order to prevent the rotating shaft from sliding out of the lower support, a sealing cover is fixedly connected to the clamping plate on the outer side of the end part of the rotating shaft.

For conveniently carrying out position error adjustment in the plane when installation, be equipped with a plurality of syntropy arranged's first flute profile hole on the upper plate, be equipped with a plurality of syntropy arranged's second flute profile holes on the lower plate, first flute profile hole and second flute profile hole mutually perpendicular arrange, the upper plate passes first flute profile hole and girder steel expansion end fixed connection through threaded fastener, and the lower plate passes second flute profile hole and pier stud fixed connection through threaded fastener.

The utility model realizes the rotary connection between the upper support and the lower support through the rotating shaft, thereby changing the gradient of the top surface of the upper support, ensuring the smooth installation of the steel beam and improving the driving comfort level; the rotating shaft and the upper support can slide relatively on the lower support through the elongated hole, the structure is simple, the manufacturing and mounting cost is low, the bending moment of the beam end of the steel beam is reduced, the structural stress of the beam end and the pier stud is clear, the phenomenon of stress concentration is reduced, the section of the pier stud and the size of the foundation can be optimized, and the construction cost is reduced.

Drawings

Fig. 1 is a schematic view of the structure of the present invention.

Fig. 2 is a schematic sectional view at a-a in fig. 1.

Fig. 3 is a schematic cross-sectional view at B-B in fig. 2.

The labels shown in the figures and the corresponding component names are:

1. an upper support; 11. an upper base plate; 12. an ear plate; 13. a hinge hole; 14. a first slot-shaped hole;

2. a rotating shaft;

3. a lower support; 31. a lower base plate; 32. a clamping plate; 33. a strip hole; 34. a second slot-shaped hole;

4. a self-lubricating shaft sleeve;

5. and (7) sealing the cover.

Detailed Description

As can be seen from fig. 1 to 3, the movable hinge shaft support for the straddle type monorail steel beam of the embodiment is installed between the movable end of the steel beam a and the corresponding pier stud b, and comprises an upper support 1, a rotating shaft 2 and a lower support 3,

the upper support 1 comprises an upper base plate 11 and two lug plates 12, the lug plates 12 are symmetrically arranged at two longitudinal sides of the bottom of the upper base plate 11 along the axis of the steel beam a, hinge holes 13 which are coaxially arranged are horizontally arranged on the two lug plates 12, and the axis of each hinge hole 13 is vertical to the axis of the steel beam a; four pairs of first slotted holes 14 are symmetrically formed in an upper bottom plate 11 on the outer side of an ear plate 12, each first slotted hole 14 is longitudinally arranged along the upper bottom plate 11, an upper support 1 is arranged at the bottom of the movable end of a steel beam a, a transverse shaft of the upper support 1 is arranged perpendicular to the axis of the steel beam a, and a threaded fastener penetrates through the first slotted holes 14 to fixedly connect the upper support 1 to the bottom of the movable end of the steel beam a;

the lower support 3 comprises a lower bottom plate 31 and four clamping plates 32, the clamping plates 32 are arranged on the top of the lower bottom plate 31 in parallel along the axis of the steel beam a, each clamping plate 32 is provided with a long hole 33 arranged along the axis of the steel beam, the four clamping plates 32 are combined into a group in pairs to form clamping parts which are arranged in a one-to-one clamping way with the lug plates 12, four pairs of second groove-shaped holes 34 are symmetrically formed in the lower bottom plate 31 on the outer side of each clamping part, and the axis of each second groove-shaped hole 34 is perpendicular to the axis of the first groove-shaped hole 14; the lower support 3 is arranged below the upper support 1, the ear plate 12 of the upper support 1 is inserted between the two clamping plates 32 of each clamping part, the strip-shaped hole 33 and the hinge hole 13 are arranged in the same horizontal plane, and the threaded fastener penetrates through the second groove-shaped hole 34 to fixedly connect the lower support 3 to the top of the pier stud b;

the rotating shaft 2 is rotatably arranged in the strip hole 33 and the hinge hole 13 to connect the upper support 1 and the lower support 3 together in a hinge way; the rotating shaft 2 can slide in the elongated hole 33 along the axis of the steel beam, and the upper support 1 slides on the lower support 3 through the rotating shaft 2.

As can be seen from fig. 1 to 3, the utility model further comprises a self-lubricating shaft sleeve 4 and a sealing cover 5, wherein the self-lubricating shaft sleeve 4 is made of graphite copper or stainless steel, the self-lubricating shaft sleeve 4 is sleeved on the rotating shaft 2 and is arranged in the strip hole 34, and the rotating shaft 2 is movably connected with the inner wall of the strip hole 34 through the self-lubricating shaft sleeve 4; the cover 5 is covered on the holding plate 32 outside the end of the rotating shaft 2.

In the utility model, in order to ensure higher performance and longer service life of the connecting piece, the upper bottom plate 11 and the lug plate 12 in the upper support 1 are cast and formed by cast steel in one step without welding work; the lower base plate 31 and the clamping plate 32 in the lower support 3 are formed by casting cast steel in one step without welding.

Claims

1. The utility model provides a stride single track of sitting steel beam with activity hinge support installs between girder steel expansion end and pier stud, its characterized in that: the support comprises an upper support (1), a rotating shaft (2) and a lower support (3), wherein the upper support comprises an upper base plate (11) and a plurality of lug plates (12) arranged at the bottom of the upper base plate along the axis of a steel beam, hinge holes (13) which are coaxially arranged are horizontally arranged on the lug plates, and the axes of the hinge holes are vertically arranged with the axis of the steel beam; the undersetting includes lower plate (31) and a plurality of grip blocks (32) of arranging in the lower plate top along the girder steel axis, be equipped with on the grip block that corresponds the department with the hinge hole and arrange at rectangular hole (33) along the girder steel axis, the lower plate rigid coupling is at the pier stud top, the upper plate rigid coupling is in girder steel expansion end bottom, the otic placode cartridge is between two adjacent grip blocks, rectangular hole and hinge hole are arranged in same horizontal plane, rotatable the installing of pivot is in rectangular hole and hinge hole and the pivot can slide at rectangular downthehole along the girder steel axis, the upper bracket rotates and sliding connection on the undersetting through the pivot.

2. The movable hinge shaft support for the straddle-type monorail steel beam as claimed in claim 1, wherein: a self-lubricating shaft sleeve (4) is sleeved on the rotating shaft in the strip hole.

3. The movable hinge shaft support for the straddle-type monorail steel beam as claimed in claim 1, wherein: a sealing cover (5) is fixedly connected on the clamping plate at the outer side of the end part of the rotating shaft.

4. The movable hinge shaft support for the straddle-type monorail steel beam as claimed in claim 1, wherein: the upper bottom plate is provided with a plurality of first groove-shaped holes (14) which are arranged in the same direction, the lower bottom plate is provided with a plurality of second groove-shaped holes (34) which are arranged in the same direction, the first groove-shaped holes and the second groove-shaped holes are mutually perpendicular to each other, the upper bottom plate penetrates through the first groove-shaped holes through threaded fasteners to be fixedly connected with movable ends of steel beams, and the lower bottom plate penetrates through the second groove-shaped holes through threaded fasteners to be fixedly connected with pier studs.