CN211759738U

CN211759738U - Flange centering device

Info

Publication number: CN211759738U
Application number: CN202020357502.0U
Authority: CN
Inventors: 卢科; 郑卫; 王传奇; 杭云
Original assignee: Ma'anshan Dangtu Power Generation Co ltd
Current assignee: Ma'anshan Dangtu Power Generation Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-10-27
Anticipated expiration: 2030-03-19

Abstract

The utility model discloses a flange centering device belongs to pipeline centering field. The utility model comprises a main claw unit, an auxiliary claw unit and a centering push rod, wherein the main claw unit comprises a main claw longitudinal rod and a main claw transverse rod which are distributed in an L shape, and a main claw fixing rod is arranged on the main claw transverse rod; the auxiliary claw unit comprises auxiliary claw longitudinal rods and auxiliary claw transverse rods which are distributed in an L shape, auxiliary claw fixing rods are arranged on the auxiliary claw transverse rods, and the main claw fixing rods and the auxiliary claw fixing rods are distributed oppositely; the auxiliary jaw longitudinal rod is connected with the main jaw longitudinal rod through a connecting sliding block, one end of the connecting sliding block is movably arranged on the main jaw longitudinal rod, and the other end of the connecting sliding block is hinged with the auxiliary jaw longitudinal rod; the main claw longitudinal rod is also provided with a centering push rod for pushing the auxiliary claw longitudinal rod. The utility model overcomes the inconvenient problem of pipeline flange centering among the prior art can effectively improve maintenance efficiency, and the device simple manufacture, and repeatedly usable, a plurality of collective use after the preparation are convenient for be suitable for various application environment.

Description

Flange centering device

Technical Field

The utility model relates to a pipeline centering technical field, more specifically say, relate to a flange centering device.

Background

At present, the overhaul and assembly of pipelines are the main ring of the pipelines for production enterprises. Most of field pipelines are deformed due to long-time use, installation errors and other reasons, flanges are staggered when the pipelines are disassembled, and constructors cannot smoothly overhaul the pipelines, such as replacing pipelines, valves and the like, the field common means is generally that long filament rods are pulled back to be aligned, the mode cannot be completely aligned, the effect is worse in places with larger stress, and even more, the hand chain block and the like are used, so that the equipment is extremely easily damaged. The existing pipeline centering equipment is mainly special equipment used in a workshop or used in a process of needing high-precision matching when being laid for the first time, is expensive in price, is limited by the environment when being used, and does not meet the requirements of field overhaul or rush repair.

Through retrieval, the Chinese patent application number: 201510693031.4, the name of invention creation is: the application discloses a flange centering device, which comprises a stepped plate, a first bolt, a second bolt, a mandril and a guide plate; the stepped plate comprises an upper step flat plate, a lower step flat plate and a vertical plate, the upper step flat plate of the stepped plate is provided with a sliding groove, a guide plate is arranged below the upper step flat plate, the guide plate slides below the upper step flat plate, a thread through hole is formed in the guide plate, a first bolt penetrates through the sliding groove and the guide plate, the first bolt is in thread fit with the thread through hole, a second bolt is located at the lower step flat plate of the stepped plate, the second bolt penetrates through the lower step flat plate, and a mandril is horizontally fixed on the vertical plate of the stepped plate. The application utilizes the ejector rod to extend into holes in different directions in the flange, adjusts the centering angle of the flange, and can adjust the position of the ejector rod for multiple times according to the relative position of the flange so as to facilitate successful centering; however, in the application, the bolt top flange is used for centering, the bolt top flange cannot be accurately positioned, the problem of pipe throwing can occur in actual operation, the flange with a large opening cannot be lifted, operation cannot be performed, and a certain optimization space still exists.

Also as in chinese patent application No.: 201310504073.X, entitled: the utility model provides a flange centering device, the flange centering device of this application, the device includes the support, and one side middle part and the upper portion of support are equipped with fixing bolt and promotion bolt respectively parallelly, and the end that promotes the bolt contacts with the bearing assembly, and the opposite side of support is equipped with the stand. The flange centering device of this application can ensure the accurate centering of flange, and small, light in weight, simple structure, portable, convenient to use, not restricted by site conditions, and likewise, still have certain optimization space, also need more diversity, the new design of convenience in the trade.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved by the utility model

The utility model aims to overcome the inconvenient problem of pipeline flange centering among the prior art, plan to provide a flange centering device, use this centering device after, solved the problem of on-the-spot maintenance pipeline centering difficulty, can effectively improve maintenance efficiency, and the device simple manufacture, repeatedly usable, a plurality of common use after the preparation, be convenient for be suitable for various application environment.

2. Technical scheme

In order to achieve the above purpose, the utility model provides a technical scheme does:

the utility model discloses a flange centering device, which comprises a main claw unit, an auxiliary claw unit and a centering push rod, wherein the main claw unit comprises a main claw longitudinal rod and a main claw transverse rod which are distributed in an L shape, and a main claw fixing rod is arranged on the main claw transverse rod; the auxiliary claw unit comprises auxiliary claw longitudinal rods and auxiliary claw transverse rods which are distributed in an L shape, auxiliary claw fixing rods are arranged on the auxiliary claw transverse rods, and the main claw fixing rods and the auxiliary claw fixing rods are distributed oppositely; the auxiliary jaw longitudinal rod is connected with the main jaw longitudinal rod through a connecting sliding block, one end of the connecting sliding block is movably arranged on the main jaw longitudinal rod, and the other end of the connecting sliding block is hinged with the auxiliary jaw longitudinal rod; the main claw longitudinal rod is also provided with a centering push rod for pushing the auxiliary claw longitudinal rod.

Furthermore, a sliding groove is formed in the main claw longitudinal rod along the length direction, a sliding block matched with the sliding groove is arranged at the end part corresponding to the connecting sliding block, and the end part of the connecting sliding block is embedded into the sliding groove and moves along the length direction of the main claw longitudinal rod.

Furthermore, the top end of the main claw longitudinal rod is provided with an adjusting rod, the adjusting rod penetrates into the main claw longitudinal rod downwards, the bottom end of the adjusting rod is pressed at the end part of the connecting sliding block, and the adjusting rod is in threaded fit connection with the main claw longitudinal rod.

Furthermore, the centering push rod penetrates through the main claw longitudinal rod through threaded fit and extends towards the direction close to the auxiliary claw longitudinal rod, and a handle is arranged at the top end of the centering push rod.

Furthermore, the end part of the centering push rod close to the auxiliary claw longitudinal rod is provided with an expanding part extending towards two sides, and the expanding part is used for surrounding the auxiliary claw longitudinal rod inside when the expanding part is close to the auxiliary claw longitudinal rod.

Furthermore, the auxiliary jaw longitudinal rod is a cylindrical rod piece, and the expansion part at the end part of the centering push rod is correspondingly arranged to extend in an arc shape.

Further, the main jaw fixing lever penetrates the main jaw cross bar by screw-fitting and extends upward, and the sub-jaw fixing lever penetrates the sub-jaw cross bar by screw-fitting and extends downward.

Furthermore, two end portions of the main pawl fixing rod and the auxiliary pawl fixing rod which are distributed oppositely are respectively a main pawl clamping end and an auxiliary pawl clamping end, wherein the main pawl clamping end and the auxiliary pawl clamping end are in a tapered shape with gradually reduced size along the respective extending directions.

3. Advantageous effects

Adopt the technical scheme provided by the utility model, compare with prior art, have following beneficial effect:

(1) the utility model discloses a flange centering device, vice claw dead lever and main claw dead lever block respectively during the use into the connecting hole that two flanges correspond, can drive vice claw dead lever pulling flange rethread through rotatory push-and-pull centering push rod and tighten up, thereby make two flanges centering gradually, the use is simple, can improve maintenance efficiency greatly, and overall structure is simple, the preparation is simple and easy, can used repeatedly after the preparation, and can use according to a plurality of cooperations jointly of user demand, the problem of present on-the-spot maintenance pipeline centering difficulty has been solved.

(2) The utility model discloses a flange centering device, the tip that the centering push rod is close to vice claw vertical pole is provided with the extension portion that extends to both sides, and extension portion is used for encircleing vice claw vertical pole when being close to in inside. By adopting the design, when the centering push rod is pushed and pushed in a rotating mode, the end portion of the centering push rod can be accurately abutted against the auxiliary claw longitudinal rod, a good and stable pushing effect is kept, and the auxiliary claw longitudinal rod is prevented from slipping or being stressed unstably.

(3) The utility model discloses a flange centering device, main claw block end and vice claw block end are the gradual type that reduces of size along extending direction separately, so design more makes things convenient for during main claw dead lever and vice claw dead lever can block into the flange connection hole fast to can be applicable to the connecting hole centering of different specifications, it is nimble more convenient to use.

(4) The utility model discloses a flange centering device, the spout has been seted up along length direction on the main claw vertical pole, the corresponding tip of link block is equipped with the slider with this spout matched with, link block tip embedding is in this spout and along main claw vertical pole length direction removal, so can adjust relative spacing between main claw dead lever and the vice claw dead lever, be convenient for carry out the centering operation to the flange under the different environment, and adjust the pole through screwing downwards and make it compress tightly the link block tip, make vice claw dead lever firmly block in the flange hole, be convenient for realize the push-and-pull centering.

Drawings

Fig. 1 is a schematic structural diagram of a flange centering device according to the present invention.

The reference numerals in the schematic drawings illustrate:

101. a main claw longitudinal rod; 102. a main jaw cross bar; 103. a main claw fixing rod; 104. a main claw clamping end; 105. adjusting a rod; 106. connecting the sliding block; 107. an auxiliary claw longitudinal rod; 108. an auxiliary jaw cross bar; 109. an auxiliary claw fixing rod; 110. a secondary pawl clamping end; 111. a connecting pin; 112. centering the push rod; 113. a handle.

Detailed Description

For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

The present invention will be further described with reference to the following examples.

Example 1

As shown in fig. 1, the flange centering device of the present embodiment includes a main claw unit, an auxiliary claw unit and a centering push rod 112, the main claw unit includes a main claw longitudinal rod 101 and a main claw transverse rod 102 which are distributed in an L shape, wherein the main claw transverse rod 102 is provided with a main claw fixing rod 103; the auxiliary jaw unit comprises an auxiliary jaw longitudinal rod 107 and an auxiliary jaw cross rod 108 which are distributed in an L shape, an auxiliary jaw fixing rod 109 is arranged on the auxiliary jaw cross rod 108, and the main jaw fixing rod 103 and the auxiliary jaw fixing rod 109 are distributed oppositely; the auxiliary jaw longitudinal rod 107 is connected with the main jaw longitudinal rod 101 through a connecting sliding block 106, one end of the connecting sliding block 106 is movably arranged on the main jaw longitudinal rod 101, and the other end of the connecting sliding block 106 is hinged with the auxiliary jaw longitudinal rod 107; the main vertical claw rod 101 is also provided with a centering push rod 112 for pushing the auxiliary vertical claw rod 107.

In this embodiment, a sliding groove is formed in the main vertical claw rod 101 along the length direction, a sliding block matched with the sliding groove is arranged at the end corresponding to the connecting sliding block 106, and the end of the connecting sliding block 106 is embedded into the sliding groove and moves along the length direction of the main vertical claw rod 101. Therefore, the relative distance between the main jaw fixing rod 103 and the auxiliary jaw fixing rod 109 can be adjusted, and the flanges in different environments can be centered conveniently. The top end of the main claw longitudinal rod 101 is provided with an adjusting rod 105, the adjusting rod 105 penetrates into the main claw longitudinal rod 101 downwards, the bottom end of the adjusting rod 105 is pressed at the end part of the connecting sliding block 106, and the adjusting rod 105 is in threaded fit connection with the main claw longitudinal rod 101. The centering push rod 112 penetrates through the main longitudinal claw rod 101 through threaded fit and extends towards the direction close to the auxiliary longitudinal claw rod 107, and a handle 113 is arranged at the top end of the centering push rod 112. The main jaw fixing lever 103 passes through the main jaw cross bar 102 by screw-fitting and extends upward, and the sub jaw fixing lever 109 passes through the sub jaw cross bar 108 by screw-fitting and extends downward.

In practical use, in this embodiment, the flanges are mainly centered and adjusted by the auxiliary-jaw fixing rod 109 and the main-jaw fixing rod 103, the height of the connecting slider 106 is adjusted according to the specific positions of the flanges, so that the auxiliary-jaw fixing rod 109 and the main-jaw fixing rod 103 can be respectively clamped into the connecting holes corresponding to the two flanges, then the adjusting rod 105 is screwed downwards to press the end of the connecting slider 106, so that the auxiliary-jaw fixing rod 109 is firmly clamped in the flange hole, then the centering push rod 112 is rotated to push the auxiliary-jaw longitudinal rod 107 forwards, the lower end of the auxiliary-jaw longitudinal rod 107 moves forwards, due to the hinge joint of the auxiliary-jaw longitudinal rod 107 and the connecting slider 106, the upper end of the auxiliary-jaw longitudinal rod 107 pulls backwards, i.e. the auxiliary-jaw fixing rod 109 is driven to pull the flanges backwards to tighten, so that the two flanges are gradually centered until the auxiliary-jaw longitudinal rod 107 finally reaches a vertical, at the moment, the upper flange connecting hole and the lower flange connecting hole completely correspond to each other, so that the flanges are completely centered.

The centering device of this embodiment, the use is simple, can improve maintenance efficiency greatly, and overall structure is simple, and the preparation is simple and easy, can used repeatedly after the preparation to can use according to a plurality of cooperations jointly of user demand, solved the problem of present on-the-spot maintenance pipeline centering difficulty.

Example 2

The flange centering device of this embodiment is basically the same as embodiment 1, and further, in this embodiment, the end of the centering push rod 112 close to the secondary vertical claw rod 107 is provided with an expanded portion extending towards two sides, and the expanded portion is used for encircling the secondary vertical claw rod 107 inside when the expanded portion is close to the secondary vertical claw rod 107. Specifically, the secondary pawl longitudinal rod 107 is a cylindrical rod, and the expanded part at the end of the centering push rod 112 is correspondingly configured to extend in an arc shape. By adopting the design, the end part of the centering push rod 112 can be accurately abutted against the auxiliary-claw longitudinal rod 107 when the centering push rod 112 is pushed and pushed in a rotating way, a good and stable pushing effect is kept, and the auxiliary-claw longitudinal rod 107 is prevented from slipping or being stressed unstably.

In the present embodiment, the two opposite ends of the main pawl fixing lever 103 and the sub-pawl fixing lever 109 are respectively a main pawl engaging end 104 and a sub-pawl engaging end 110, wherein the main pawl engaging end 104 and the sub-pawl engaging end 110 are tapered in size along the respective extending directions. Namely, the main jaw fastening end 104 at the top end of the main jaw fixing rod 103 gradually reduces in cross-sectional area upwards, and the auxiliary jaw fastening end 110 at the bottom end of the auxiliary jaw fixing rod 109 gradually reduces in cross-sectional area downwards, so that the design is more convenient for the main jaw fixing rod 103 and the auxiliary jaw fixing rod 109 to be quickly clamped into flange connecting holes, and the flange connecting holes can be suitable for centering of connecting holes of different specifications, and the application is more flexible and convenient.

The present invention and its embodiments have been described above schematically, and the description is not limited thereto, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without departing from the inventive spirit of the present invention, the person skilled in the art should also design the similar structural modes and embodiments without creativity to the technical solution, and all shall fall within the protection scope of the present invention.

Claims

1. A flange centering device which characterized in that: the centering device comprises a main claw unit, an auxiliary claw unit and a centering push rod (112), wherein the main claw unit comprises a main claw longitudinal rod (101) and a main claw transverse rod (102) which are distributed in an L shape, and a main claw fixing rod (103) is arranged on the main claw transverse rod (102); the auxiliary claw unit comprises auxiliary claw longitudinal rods (107) and auxiliary claw transverse rods (108) which are distributed in an L shape, auxiliary claw fixing rods (109) are arranged on the auxiliary claw transverse rods (108), and the main claw fixing rods (103) and the auxiliary claw fixing rods (109) are distributed oppositely; the auxiliary jaw longitudinal rod (107) is connected with the main jaw longitudinal rod (101) through a connecting sliding block (106), one end of the connecting sliding block (106) is movably arranged on the main jaw longitudinal rod (101), and the other end of the connecting sliding block (106) is hinged with the auxiliary jaw longitudinal rod (107); the main vertical claw rod (101) is also provided with a centering push rod (112) for pushing the auxiliary vertical claw rod (107).

2. A flange centering device as claimed in claim 1, wherein: a sliding groove is formed in the main claw longitudinal rod (101) along the length direction, a sliding block matched with the sliding groove is arranged at the end part corresponding to the connecting sliding block (106), and the end part of the connecting sliding block (106) is embedded into the sliding groove and moves along the length direction of the main claw longitudinal rod (101).

3. A flange centering device as claimed in claim 2, wherein: the top end of the main claw longitudinal rod (101) is provided with an adjusting rod (105), the adjusting rod (105) penetrates into the main claw longitudinal rod (101) downwards, the bottom end of the adjusting rod is pressed at the end of the connecting sliding block (106), and the adjusting rod (105) is in threaded fit connection with the main claw longitudinal rod (101).

4. A flange centering device as claimed in claim 1, wherein: the centering push rod (112) penetrates through the main jaw longitudinal rod (101) through threaded fit and extends towards the direction close to the auxiliary jaw longitudinal rod (107), and a handle (113) is arranged at the top end of the centering push rod (112).

5. A flange centering device as claimed in claim 1, wherein: the end part of the centering push rod (112) close to the auxiliary jaw longitudinal rod (107) is provided with an expansion part extending towards two sides, and the expansion part is used for surrounding the auxiliary jaw longitudinal rod (107) when the expansion part is close to the auxiliary jaw longitudinal rod.

6. A flange centering device according to claim 5, wherein: the auxiliary jaw longitudinal rod (107) is a cylindrical rod piece, and the expansion part at the end part of the centering push rod (112) is correspondingly arranged to be arc-shaped and extended.

7. A flange centering device as claimed in claim 1, wherein: a main jaw fixing lever (103) penetrates the main jaw cross bar (102) through screw-fit and extends upward, and an auxiliary jaw fixing lever (109) penetrates the auxiliary jaw cross bar (108) through screw-fit and extends downward.

8. A flange centering device according to any one of claims 1 to 7, wherein: the two end parts of the main claw fixing rod (103) and the auxiliary claw fixing rod (109) which are distributed oppositely are a main claw clamping end (104) and an auxiliary claw clamping end (110), wherein the main claw clamping end (104) and the auxiliary claw clamping end (110) are tapered, and the sizes of the main claw clamping end and the auxiliary claw clamping end are gradually reduced along the respective extending directions.