CN211175628U

CN211175628U - Pull rod structure in constant force spring support hanger

Info

Publication number: CN211175628U
Application number: CN201922194937.8U
Authority: CN
Inventors: 黄喜福
Original assignee: JIANGSU FUTAI ELECTRIC POWER EQUIPMENT CO Ltd
Current assignee: JIANGSU FUTAI ELECTRIC POWER EQUIPMENT CO Ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-08-04
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a pull rod structure among constant force spring gallows, including first arm-tie, second arm-tie, pivot, guide block and gyro wheel, be equipped with waist type groove on the guide block, in the pivot was located to the gyro wheel cover, waist type inslot was worn to locate in the pivot to make the gyro wheel roll at waist type inslot, first arm-tie and second arm-tie all overlap and locate in the pivot. The utility model discloses improve original spring pull rod, spring pull rod does not make holistic structure, increases guiding mechanism in the centre, can the free activity. The guide mechanism enables the pull rod and the pipe part to be vertical all the time after the pipeline is subjected to thermal displacement, and the accessory stress of the support and hanger on the pipeline and the accessory stress of a building structure are greatly reduced.

Description

Pull rod structure in constant force spring support hanger

Technical Field

The utility model relates to a pull rod structure among constant force spring gallows.

Background

The constant suspension of the spring support and hanger is designed according to the moment balance principle. Under the allowable load displacement, the load moment and the spring moment are always kept in balance. When the pipeline and equipment supported by the constant crane are displaced, constant supporting force can be provided, so that additional stress can not be brought to the pipeline equipment. Constant suspension is generally used in places where reduced displacement stress is required, such as the boiler body of a power station, the suspended parts of steam, water, smoke, air pipes and burners of a power plant, and places where such support is required in the petroleum and chemical industries.

According to the lever principle, the spring pull rod in the traditional constant-lifting device can drive the pull rod to deflect to one side when running in the slewing mechanism, so that the friction among the spring, the pressing plate and the cylinder wall is increased, and the constant-lifting performance is reduced.

Disclosure of Invention

The utility model provides a draw bar structure in constant force spring hangers and support for solve the problem that above-mentioned prior art exists.

The utility model discloses the technical scheme who adopts has: a pull rod structure in a constant force spring support hanger comprises a first pull plate, a second pull plate, a rotating shaft, a guide block and a roller, wherein a waist-shaped groove is formed in the guide block, the roller is sleeved on the rotating shaft, the rotating shaft is arranged in the waist-shaped groove in a penetrating mode and enables the roller to roll in the waist-shaped groove, and the first pull plate and the second pull plate are both sleeved on the rotating shaft;

the tail end of the first pulling plate is provided with a first connecting hole, the left side end face of the guide block is provided with a through hole, the through hole is communicated with the waist-shaped groove, the first pulling plate extends into the waist-shaped groove through the through hole, and the rotating shaft penetrates through the first connecting hole;

the two second pulling plates are arranged, the two ends of each second pulling plate are respectively provided with a second connecting hole, the two second pulling plates are symmetrically arranged on the two sides of the guide block, and the second pulling plates are connected to the rotating shaft through the second connecting holes.

Furthermore, the first pulling plate, the second pulling plate and the roller are positioned on the rotating shaft through elastic check rings.

Furthermore, a plurality of reinforcing plates are welded on the upper end face and the lower end face of the guide block.

Furthermore, the reinforcing plates are rectangular, and three reinforcing plates are welded on the upper end face and the lower end face of the guide block.

Furthermore, the number of the rollers is two, the first pulling plate is arranged between the two rollers, and the rollers are axially positioned on the rotating shaft through the elastic check rings.

Furthermore, the left end of the first pulling plate is provided with a connecting external thread.

The utility model discloses following beneficial effect has:

the utility model discloses improve original spring pull rod, spring pull rod does not make holistic structure, increases guiding mechanism in the centre, can the free activity. The guide mechanism enables the pull rod and the pipe part to be vertical all the time after the pipeline is subjected to thermal displacement, and the accessory stress of the support and hanger on the pipeline and the accessory stress of a building structure are greatly reduced.

Drawings

Fig. 1 is an exploded view of the present invention.

Fig. 2 is a top view of the installation of the present invention.

Fig. 3 is an application structure diagram of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings.

As shown in fig. 1 and 2, the utility model relates to a pull rod structure in constant force spring hangers and support, including first arm-tie 51, second arm-tie 52, pivot 6, guide block 7 and gyro wheel 8, be equipped with waist type groove 71 on the guide block 7, on pivot 6 was located to the gyro wheel 8 cover, waist type groove 71 was worn to locate in pivot 6 to make gyro wheel 8 roll in waist type groove 71, first arm-tie 51 and second arm-tie 52 all overlap and locate in pivot 6.

The utility model provides a gyro wheel 8 is equipped with two, and two gyro wheels 8 are installed in pivot 6 back, are formed with the installation clearance between two gyro wheels 8, and gyro wheel 8 passes through circlip axial positioning in pivot 6.

The end of the first pulling plate 51 is provided with a first connecting hole 511, the left end face of the guide block 7 is provided with a through hole, the through hole is communicated with the waist-shaped groove 71, the first pulling plate 51 extends into the waist-shaped groove 71 through the through hole, the rotating shaft 6 penetrates through the first connecting hole 511, and the first pulling plate 51 is positioned in the installation gap between the two rollers 8.

The number of the second pulling plates 52 is two, the two ends of the second pulling plates 52 are both provided with second connecting holes 522, the two second pulling plates 52 are symmetrically arranged on the two sides of the guide block 7, and the second pulling plates 52 are connected to the rotating shaft 6 through the second connecting holes 522.

The utility model discloses well first arm-tie 51, second arm-tie 52 and gyro wheel 8 all carry out axial positioning through circlip in pivot 6.

In order to ensure the strength of the guide block 7, a plurality of reinforcing plates 72 are welded to the upper and lower end surfaces of the guide block 7. The reinforcing plate 72 is rectangular, and three reinforcing plates 72 are welded to both the upper and lower end faces of the guide block 7.

Referring to fig. 3, in use, the guide block 7 is fixed on the end cap 9, the end cap 9 is fixed at the port of the protective sleeve 1, the guide block 7 is disposed in the protective sleeve 1, and after the end cap 9 is fixed on the protective sleeve 1, the waist-shaped groove 71 on the guide block 7 is disposed along the axial direction of the sleeve 1. The roller 8 is sleeved on the rotating shaft 6, the rotating shaft 6 penetrates through the waist-shaped groove 71, the roller 8 rolls in the waist-shaped groove 71, the first pulling plate 51 and the second pulling plate 52 are sleeved on the rotating shaft 6, and the first pulling plate 51, the second pulling plate 52 and the rotating shaft 6 are in clearance fit.

One end of the second pulling plate 52 penetrates through the end cover 9 and extends out of the protective sleeve 1 to be rotatably connected with the rotating plate 10, the rotating plate 10 is rotatably connected to the side plate 12, the side plate 12 is fixedly connected with the end cover 9, the load bolt 11 is rotatably connected to the rotating plate 10, the pressing plate 3 is arranged on the first pulling plate 51 in a penetrating mode, the positioning nut 4 is in threaded connection with the external thread at the left end of the first pulling plate 51, and the positioning nut 4 is located on the outer side of the pressing plate 3. The spring 2 is placed between the pressure plate 3 and the end cap 9, and the first pulling plate 51, the second pulling plate 52 and the guide block 7 are all received in the inner ring of the spring 2.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications can be made without departing from the principle of the present invention, and these modifications should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a pull rod structure in constant force spring gallows which characterized in that: the device comprises a first pulling plate (51), a second pulling plate (52), a rotating shaft (6), a guide block (7) and a roller (8), wherein a waist-shaped groove (71) is formed in the guide block (7), the roller (8) is sleeved on the rotating shaft (6), the rotating shaft (6) penetrates through the waist-shaped groove (71) and enables the roller (8) to roll in the waist-shaped groove (71), and the first pulling plate (51) and the second pulling plate (52) are both sleeved on the rotating shaft (6);

the tail end of the first pulling plate (51) is provided with a first connecting hole (511), the left end face of the guide block (7) is provided with a through hole, the through hole is communicated with the waist-shaped groove (71), the first pulling plate (51) extends into the waist-shaped groove (71) through the through hole, and the rotating shaft (6) penetrates through the first connecting hole (511);

the number of the second pulling plates (52) is two, the two ends of each second pulling plate (52) are respectively provided with a second connecting hole (522), the two second pulling plates (52) are symmetrically arranged on the two sides of the guide block (7), and the second pulling plates (52) are connected to the rotating shaft (6) through the second connecting holes (522).

2. The tension rod structure in the constant force spring support hanger according to claim 1, wherein: the first pulling plate (51), the second pulling plate (52) and the roller (8) are positioned on the rotating shaft (6) through elastic check rings.

3. The tension rod structure in the constant force spring support hanger according to claim 1, wherein: and a plurality of reinforcing plates (72) are welded on the upper end surface and the lower end surface of the guide block (7).

4. The tension rod structure in the constant force spring hanger of claim 3, wherein: the reinforcing plates (72) are rectangular, and three reinforcing plates (72) are welded to the upper end face and the lower end face of the guide block (7).

5. The tension rod structure in the constant force spring support hanger according to claim 1, wherein: the number of the rollers (8) is two, the first pulling plate (51) is arranged between the two rollers (8), and the rollers (8) are axially positioned on the rotating shaft (6) through elastic check rings.

6. The tension rod structure in the constant force spring support hanger according to claim 1, wherein: and the left end of the first pulling plate (51) is provided with a connecting external thread.